GMC Sierra All Terrain HD Concept, 2011

 

 

GMC Sierra All Terrain HD Concept, 2011

The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain suspension and premium details expected of a GMC - all designed to enable greater access to off-road destinations.

The new 2011 Sierra HD underpins the All Terrain HD concept, with a modified, production-based 4WD chassis and the Duramax diesel/Allison 1000 six-speed powertrain. The enhanced suspension and unique body dimensions, including increased ground clearance and wider track, as well as greater approach/departure angles, deliver off-road capability while maintaining HD levels of payload and trailering capacity.

The GMC Sierra All Terrain HD features a unique five-foot, eight-inch Crew Cab/short box body configuration that supports a wheels-at-the-corners proportion. Shorter in overall length than production Sierra HD models, the concept's dimensions contribute to greater approach/departure angles. Additional off-road elements:

•     Wider, 73-inch (1,853 mm) track for greater stability
•     Approximately 3 inches (76 mm) greater ground clearance
•     Custom front upper and lower control arms
•     Specially constructed Fox off-road shocks with remote fluid reservoirs (integrated in the wheel house liners)
•     Front and rear jounce shocks
•     Electronic front stabilizer bar disconnection
•     35-inch-tall BFGoodrich KM2 "mud terrain" tires mounted on 20-inch machined aluminum wheels
•     Full composite underbody protection.

Purposeful design
From every angle, the All Terrain HD looks the part of a dedicated off-road performer, with bold, accentuated features complemented by a wide stance and tall profile.

Streamlined bumpers are designed to enhance approach/departure angles and incorporate frame-mounted recovery hooks - with integrated skid plates. A large, airflow-optimized grille maximizes cooling in tough conditions, while a forced-induction hood delivers more air to the Duramax diesel engine.

Large fender flares stretch away from the body to cover the 35-inch-tall BFGoodrich tires. At the rear, the cargo box features lockable, lighted storage compartments, along with a number of tie-down cleats, including a pair in the bed floor and two on each side of the bed. A non-slip rubber pad is used on the tailgate, while two special compartments inside the cargo box provide access to a 110-volt power outlet and air compressor. A composite bed liner with a unique "circuit board" pattern provides a protective cover for the bed.

Motorized, deployable assist steps for the cab and cargo bed make it easier to enter and exit the All Terrain HD, while maximizing ground clearance during off-road driving. It also incorporates a number of industrial-grade lighting elements to provide greater visibility for safer driving where stars may be the only other source of illumination. The lighting details:

•     High-intensity LED headlamp, taillamp and fog lamp lighting mounted in impact-resistant composite housings and featuring edge-lit illumination
•     High-intensity LED park and turn signal lamps
•     Smooth-appearance front marker lamps integrated behind the top edge of the windshield glass
•     Integrated center high-mounted stop lamp and rear marker lights mounted at the top edge of the rear window glass
•     LED floodlights for the cargo bed and assist steps.

The All Terrain HD is painted Iridium Metallic - a dark charcoal color that reveals a reddish, anodized inflection when viewed from certain angles. It complements other anodized and satin-metal finishes on the exterior, which give the truck a more precise and functional appearance.

The interior matches the exterior aesthetic, with premium appointments and increased functionality, including enhanced lighting. It conveys solidity and precision, blending accent details such as stainless steel mesh and satin chrome with an amplified expression of the All Terrain's premium features. Two-tone dark gray leather seats, matched with embossed carbon fiber-style leather on the seating surfaces, have red contrast stitching. Additional leather-wrapped interior features include the steering wheel, instrument panel and center console.

A new navigation radio is also featured on the GMC Sierra All Terrain HD concept and previews future radios to be offered in GMC vehicles. An integrated 80-gig hard drive contains map data for the navigation system. It eliminates the need for a map disc and provides greater storage of music from portable devices. It also features DVR-style "time lapse playback," which allows up to 20 minutes of recording/playback from the AM/FM/XM radio stations.

All Terrain chassis and suspension
Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD features a fully boxed steel frame with exceptional strength and torsional stiffness. It incorporates the production models' new independent front suspension and asymmetrical rear leaf-spring suspensions, but with a wider 73-inch (1,853 mm) track (front and rear) that enhances stability during off-road and highway driving. A production Sierra 2500HD has front and rear tracks of 68.8 inches (1,748 mm) and 67.3 inches (1,709 mm), respectively.

An increased ride height provides greater ground clearance of 21.1 inches (536 mm) at the rockers and 11.8 inches (300 mm) at the skid plates, while specialized Fox off-road shocks deliver exceptional damping on tough terrain. They were created specially for the All Terrain HD, with specific valving. The shocks feature visible, remote fluid reservoirs - connected to the shock bodies via custom hoses - mounted in the wheel house liners and are matched with front and rear jounce shocks. They add additional compression damping and more controlled rebound, which helps increase control, stability and handling.

The All Terrain HD also features electronic disconnection of the front stabilizer bar, which enables greater crawling capability on rocky terrain. The driver simply pushes a button inside the cab to disconnect it from the front suspension.

Custom upper and lower control arms for the front suspension are designed to work with the Fox off-road shocks and jounce shocks, while supporting the greater ground clearance and ride height. They contribute to the wider track, as do the aggressive 20-inch machined aluminum all-terrain wheels. The wheels are deep, with six split-spoke elements, and are constructed in a reverse drop-flange method that ensures optimal strength. They also feature a mix of satin chrome and anodized aluminum finishes, which provide durability and a premium appearance that complements the body's Iridium Metallic color.

A full composite underbody protection system shields the All Terrain HD's transmission, drivetrain, fuel tank, exhaust system and axle differentials. It starts with the front bumper, which rolls beneath the truck and leads to a composite, integral belly pan that covers a front suspension skid plate. Protective covers are also mounted beneath the driveline components, while the front and rear differentials feature direct-mounted skid plates. The rear bumper is integrated with the rear skid plate.

Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 Sierra HD trucks. The Duramax is rated at 397 horsepower (296 kW) and 765 lb.-ft. of torque (1,037 Nm).

The powerful 6.6L Duramax is more fuel-efficient - with up to 11-percent greater fuel economy than previous versions - and reduces NOx emissions by up to 63 percent. The powertrain's efficiency is assisted by the Allison 1000 transmission, which requires less engine power to funnel torque to the axles. It also incorporates a "smart" exhaust brake feature that helps save wear on the brakes on downhill grades, a feature available on production Sierra HDs.

The same proven powertrain as production Sierra HD trucks, the All Terrain HD delivers comparable hauling and towing capabilities, including:

•     Estimated payload capacity of 2,700 pounds (1,225 kg)
•     Estimated conventional towing capacity of 13,000 pounds (5,896 kg)
•     Estimated fifth-wheel towing capacity of 15,600 pounds (7,076 kg).

The GMC Sierra All Terrain HD also features four-wheel drive, with automatic locking front and rear differentials, while the 14-inch, four-wheel disc brake system from the production Sierra HD provides the stopping power for this unique off-roader.

GMC SIERRA ALL TERRAIN HD CONCEPT SPECIFICATIONS

•     Body style / driveline: 5-passenger crew cab, 3/4-ton 4-wheel-drive heavy-duty pickup
•     Construction: body on frame
•     Engine: Duramax 6.6L turbo-diesel
•     Horsepower: 397 hp (296 kW) @ 3000 rpm
•     Torque: 765 Nm (1037 lb.-ft) @ 1600 rpm
•     Transmission: Allison 1000 six-speed automatic

    Suspension
        front: long- and short-arm independent with torsion bars
        rear: semi-elliptic two-stage multi-leaf spring
    Steering type: integral power-assisted recirculating ball
    Brakes (type): power-assisted, Hydroboost brake-apply system, four-wheel disc, four-wheel ABS
    Brake rotor (diameter x thickness)
        front: 13.97" x 1.57" / 355 x 40 mm
        rear: 14.17" x 1.34" / 360 x 34 mm
    Wheel size and type: 20 x 9.5-inch aluminum
    Tire type and size: BFGoodrich KM2 325/60R20
    Wheelbase: 148.6" / 3774 mm
    Overall length: 230.9" / 5864 mm
    Overall width: 83" / 2106 mm
    Overall height: 81.8" / 2077 mm
    Track
        front: 73" / 1853 mm
        rear: 73" / 1853 mm
    Minimum ground clearance
        21.1" / 536 mm (at rocker panels)
        11.8" / 300 mm (at skid plates)
    Approach angle
        front: 39°
        rear: 31°
    Maximum payload (est.): 2700 lbs. / 1225 kg
    Maximum towing capacity (est.)
        ball hitch: 13,000 lbs. / 5896 kg
        fifth-wheel hitch(est.): 15,600lbs. / 7076 kg

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GMC Granite Concept, 2010

 

 

 

GMC Granite Concept, 2010

Combining a decidedly urban-industrial design aesthetic with functionality aimed at young professionals, the GMC Granite Concept takes the brand's trademark capability in a new, more progressive direction. It was introduced at the 2010 North American International Auto Show in Detroit.

When brought to market, the GMC Granite Concept would be the smallest GMC ever - but has been optimized to feel much larger. Its length is a full 2 feet (0.6 m) shorter than the new Terrain compact crossover, but its open interior was designed to be spacious and flexible to fit the needs of active people. Generous cargo space and unique flipping/folding seats, for example, enable a mountain bike to be loaded completely inside with the tailgate closed.

Like GMC's current lineup of trucks, SUVs and crossovers, the GMC Granite Concept delivers style and capability, with advanced features, high-quality materials and exceptional attention to detail. An industrial-influenced exterior is combined with a spacious interior that features precise instruments and leading-edge technology. The climate system, navigation and infotainment technologies, for example, are viewed via an extra-wide, next-generation organic light-emitting diode technology that is more dynamic than the conventional screens used in most production vehicles.

Industrial-inspired exterior
A cadre of young designers drew upon the preferences of young, urban professionals like themselves, who are very social and active. They are more likely to take friends to clubs and load outdoor gear on weekend excursions than to haul lumber or tow a boat. With those requirements in mind, they sketched out the dimensions of the GMC Granite Concept accordingly. Its 103.6-inch (2,631 mm) wheelbase is comparable to a Chevrolet Cobalt, but its 161.3-inch (4,097 mm) overall length is more than a foot shorter. Its size gives the GMC Granite Concept exceptional maneuverability, even within narrow urban streets.

The GMC Granite Concept's comparatively short body length is complemented by a wide, 70.3-inch (1,786 mm) overall width and a tall, 60.5-inch (1,536 mm) height. Those dimensions create unique proportions that depart dramatically from conventional minivan, SUV or crossover designs. "The Design team leveraged the best attributes from different segments: SUV, minivan and crossover, and mixed them with a commercial chic aesthetic. We feel this redefines the premium class of vehicles we call urban utility vehicles," said Lyon.

GMC Granite Concept has four doors, hinged on each side to open like a set of French doors. There's no pillar between the front and rear doors, making the GMC Granite Concept easier to enter, exit and load, even with bulky items.
In keeping with the vehicle's urban theme, the exterior of the GMC Granite Concept has a series of complex, intersecting planes and angles, creating the impression of an industrial machine - an object created out of necessity, but admired for its precision and functional aesthetics.

A forward-angling motif that cuts through the door panels, starting high and behind the doors and cutting to the center of the front door, suggests motion, as does a high beltline and tapered side glass. A rear spoiler is integrated into the roof and extends slightly above the rear glass. Other angles and planes of the exterior appear carefully metal-crafted.

Up front, GMC's signature grille design is flanked by headlamps that sweep back into the fenders, further suggesting motion. The headlamps and fog lamps are set at the far edges of the front-end bodywork, accentuating the GMC Granite Concept's planted stance. At the rear, the vehicle's planes and angles come together tightly, showing careful attention to detail. Other exterior elements include prominent taillamps with a multi-layer appearance and LED lighting technology; and a centered exhaust outlet with a brushed metal tip.

There is no chrome on the exterior of the GMC Granite Concept; all the trim has a satin or brushed metal finish, accenting the industrial look. Large, 20-inch wheels - wrapped in Bridgestone tires - were tailored within the fenders for a low, sporty stance. The exterior color of the GMC Granite Concept is metallic gray that evokes the look of the material for which this concept was named.

Mechanically minded, highly functional interior
The interior was inspired by the design of aircraft-type mechanical instruments and precision tools. That is most apparent on the dashboard and instrument cluster, where gauges were modeled after finely crafted timepieces. A compass incorporated into the "barrel" surrounding the speedometer moves with every turn of the vehicle, providing an at-a-glance directional confirmation. "Our goal was not to hide but to show how this vehicle is put together, and the high quality of its craftsmanship, not unlike the finest industrial-inspired luxury time pieces," said Lyon.

Red backlighting illuminates the gauges, while a panel of organic light-emitting diode screens is the foundation for the vehicle's navigation, infotainment, phone and climate control readouts. The screens represent the next generation in vehicle information displays, with bright, multidimensional readouts and intuitive controls that give the GMC Granite Concept a modern feel.

Integrated within GMC Granite Concept are unmistakable GMC cues, including a center stack wing motif similar to that of the new GMC Terrain. A prominent center console runs between the front and rear seats, with ports to plug in popular portable electronic devices, as well as storage compartments large enough for a laptop computer.

The center console also houses a unique transmission shifter. Rather than a handle that actuates within a conventional gate, it is a simple, space-saving knob that rotates with the precise clicks of a torque wrench. The gear selections are confirmed via LED indicators.
The most functional elements of the GMC Granite Concept are reconfigurable seats. The front passenger and right rear seats flip up and fold in toward the center console, creating a long, unobstructed storage space. The GMC Granite Concept functionally addresses the needs of young professionals and their activities without compromises.

The cargo area includes a number of compartments to store items out of sight. Cargo hold-down provisions are built into the cargo area and the seatbacks have clasps that can be used when the seats are upright or folded to help secure cargo.
The GMC Granite Concept's interior is finished with dark tones on the bottom and complementing, lighter colors on top, including suede-like Nubuck material on the seats and instrument panel. The interior is further accented by satin-finish and anodized trim. The instrument panel gives the impression of a command console, with driver-focused instruments and controls set in an anodized panel.

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Fiat 500 Sport, 2011

 

Fiat 500 Sport, 2011

The reborn and reimagined Fiat 500 is arriving soon to America. Born in Italy, perfectly tailored for America, the Cinquecento is as vibrant and engaging as it is fit and nimble. The Fiat 500 Sport, featured in these images, illustrates Fiat's smart and stylish design aesthetic. Like the original Fiat 500 a half-century ago, the new Cinquecento continues its timeless value while embracing individual expression and opportunity - all infused with world-class craftsmanship.

The Cinquecento offers unique adaptations for the North American market and is designed for individuals who demand that style and fashion can coexist with practicality and functionality. Matching its sport-tuned suspension, the Fiat 500 Sport features athletically styled front and rear fascias with a larger grille and flared aerodynamic treatment. Between its unique 16-inch aluminum wheels with Mineral Gray painted pockets, the Cinquecento incorporates new body-side sill cladding for an enhanced sport appearance.

Completing the athletic vehicle's appearance are Performance Red painted brake calipers, a chromed exhaust tip and gloss black shadow-line window trim. The Fiat 500 Sport also features an available SkyDome power sun roof for an ultra-open view of the world. The Fiat 500 will be also available in the Pop and Lounge models with unique exterior cues and different equipment options.

The world-class 1.4-liter engine with Fiat's state-of-the-art MultiAir technology powers the Fiat 500 Sport. MultiAir significantly reduces emissions while improving fuel economy and power delivery by up to 10 percent when compared to similar engines.

The Fiat 500's technology, driving dynamics and interior features have been intelligently adapted for the North American market, and it will offer small-car buyers a stylish, high-value alternative. The all-new Fiat 500 will be available for ordering later this year in the Sport, Pop and Lounge models, followed by the all-new Fiat 500C (cabrio) in the spring of 2011.

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Fiat 500 Coupe Zagato Concept, 2011

 

Fiat 500 Coupe Zagato Concept, 2011

The Fiat 500 Coupé Zagato - the concept created by one of the most famous automotive design names in the world, with the collaboration of the Fiat Group Automobiles' Centro Stile - makes its debut at the 2011 Geneva International Motor Show.

The prototype stands out for its sinuous yet decidedly sporty and contemporary contours, inspired by the namesake predecessor built in the 1950 by the famous Italian bodyworker on the chassis of the 500. Yet while Zagato had then completely revamped the exterior style of the basic model, today the designers emphasised the silhouette of the Fiat 500, already similar to a coupé, giving it an even more aggressive appeal. In addition, the unique shape of the roof features the characteristic "double hump", the true emblem of Zagato, teaming the lowering of the car with retaining excellent interior comfort.

The concept car affords the classic "2+2 seater" formula, retaining the compact dimensions of the basic model: indeed, it is 355 centimetres long, 163 cm wide and 149 cm high, with a 230 centimetre wheelbase. So it is a compact car which "conceals" under the bonnet the revolutionary TwinAir 105 HP engine which maximizes the "fun to drive" of this car, while ensuring, consistently with the downsizing philosophy, excellent performance levels against a considerable reduction in fuel consumption and emission levels. To achieve this objective, the engine features a specific "turbomatching" (engine-turbocharger coupling).

The 105 HP TwinAir engine, which has never been used on any of the Group's models yet, is therefore the ideal engine to be installed in compact sized sporty cars, as demonstrated by the high torque delivered (155 Nm at 2,500 rpm) and the absolute world record in terms of absolute power (105 HP at 5,500 rpm). In addition, at 124 HP/litre, this engine is also one of the world leaders in specific power. All while ensuring reduced fuel consumption and CO2 emissions unrivalled in this category: 95 g/km.

The designed mainly for a young and dynamic male target, the Fiat 500 Coupé Zagato Concept also accommodates the needs of a female target owing to the painstaking pursuit of stylistic solutions resulting from the most interesting trends on colours and materials. For instance, the prototype livery is Pop Yellow, a specific three-layer bodypaint colour tending towards white which emphasises the vehicle contour while giving it a pop image, full of energy and brimming with personality.

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GMC Sierra All Terrain HD Concept, 2011

 

 

GMC Sierra All Terrain HD Concept, 2011

The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain suspension and premium details expected of a GMC - all designed to enable greater access to off-road destinations.

The new 2011 Sierra HD underpins the All Terrain HD concept, with a modified, production-based 4WD chassis and the Duramax diesel/Allison 1000 six-speed powertrain. The enhanced suspension and unique body dimensions, including increased ground clearance and wider track, as well as greater approach/departure angles, deliver off-road capability while maintaining HD levels of payload and trailering capacity.

The GMC Sierra All Terrain HD features a unique five-foot, eight-inch Crew Cab/short box body configuration that supports a wheels-at-the-corners proportion. Shorter in overall length than production Sierra HD models, the concept's dimensions contribute to greater approach/departure angles. 

 

Elements:
    Wider, 73-inch (1,853 mm) track for greater stability
    Approximately 3 inches (76 mm) greater ground clearance
    Custom front upper and lower control arms
    Specially constructed Fox off-road shocks with remote fluid reservoirs (integrated in the wheel house liners)
    Front and rear jounce shocks
    Electronic front stabilizer bar disconnection
    35-inch-tall BFGoodrich KM2 "mud terrain" tires mounted on 20-inch machined aluminum wheels
    Full composite underbody protection.

Purposeful design
From every angle, the All Terrain HD looks the part of a dedicated off-road performer, with bold, accentuated features complemented by a wide stance and tall profile.
Streamlined bumpers are designed to enhance approach/departure angles and incorporate frame-mounted recovery hooks - with integrated skid plates. A large, airflow-optimized grille maximizes cooling in tough conditions, while a forced-induction hood delivers more air to the Duramax diesel engine.

Large fender flares stretch away from the body to cover the 35-inch-tall BFGoodrich tires. At the rear, the cargo box features lockable, lighted storage compartments, along with a number of tie-down cleats, including a pair in the bed floor and two on each side of the bed. A non-slip rubber pad is used on the tailgate, while two special compartments inside the cargo box provide access to a 110-volt power outlet and air compressor. A composite bed liner with a unique "circuit board" pattern provides a protective cover for the bed.

Motorized, deployable assist steps for the cab and cargo bed make it easier to enter and exit the All Terrain HD, while maximizing ground clearance during off-road driving. It also incorporates a number of industrial-grade lighting elements to provide greater visibility for safer driving where stars may be the only other source of illumination. 

 

The lighting details:
    High-intensity LED headlamp, taillamp and fog lamp lighting mounted in impact-resistant composite housings and featuring edge-lit illumination
    High-intensity LED park and turn signal lamps
    Smooth-appearance front marker lamps integrated behind the top edge of the windshield glass
    Integrated center high-mounted stop lamp and rear marker lights mounted at the top edge of the rear window glass
    LED floodlights for the cargo bed and assist steps.

The All Terrain HD is painted Iridium Metallic - a dark charcoal color that reveals a reddish, anodized inflection when viewed from certain angles. It complements other anodized and satin-metal finishes on the exterior, which give the truck a more precise and functional appearance.

The interior matches the exterior aesthetic, with premium appointments and increased functionality, including enhanced lighting. It conveys solidity and precision, blending accent details such as stainless steel mesh and satin chrome with an amplified expression of the All Terrain's premium features. Two-tone dark gray leather seats, matched with embossed carbon fiber-style leather on the seating surfaces, have red contrast stitching. Additional leather-wrapped interior features include the steering wheel, instrument panel and center console.

A new navigation radio is also featured on the GMC Sierra All Terrain HD concept and previews future radios to be offered in GMC vehicles. An integrated 80-gig hard drive contains map data for the navigation system. It eliminates the need for a map disc and provides greater storage of music from portable devices. It also features DVR-style "time lapse playback," which allows up to 20 minutes of recording/playback from the AM/FM/XM radio stations.

All Terrain chassis and suspension
Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD features a fully boxed steel frame with exceptional strength and torsional stiffness. It incorporates the production models' new independent front suspension and asymmetrical rear leaf-spring suspensions, but with a wider 73-inch (1,853 mm) track (front and rear) that enhances stability during off-road and highway driving. A production Sierra 2500HD has front and rear tracks of 68.8 inches (1,748 mm) and 67.3 inches (1,709 mm), respectively.

An increased ride height provides greater ground clearance of 21.1 inches (536 mm) at the rockers and 11.8 inches (300 mm) at the skid plates, while specialized Fox off-road shocks deliver exceptional damping on tough terrain. They were created specially for the All Terrain HD, with specific valving. The shocks feature visible, remote fluid reservoirs - connected to the shock bodies via custom hoses - mounted in the wheel house liners and are matched with front and rear jounce shocks. They add additional compression damping and more controlled rebound, which helps increase control, stability and handling.

The All Terrain HD also features electronic disconnection of the front stabilizer bar, which enables greater crawling capability on rocky terrain. The driver simply pushes a button inside the cab to disconnect it from the front suspension.

Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 Sierra HD trucks. The Duramax is rated at 397 horsepower (296 kW) and 765 lb.-ft. of torque (1,037 Nm).

The powerful 6.6L Duramax is more fuel-efficient - with up to 11-percent greater fuel economy than previous versions - and reduces NOx emissions by up to 63 percent. The powertrain's efficiency is assisted by the Allison 1000 transmission, which requires less engine power to funnel torque to the axles. It also incorporates a "smart" exhaust brake feature that helps save wear on the brakes on downhill grades, a feature available on production Sierra HDs.

With the same proven powertrain as production Sierra HD trucks, the All Terrain HD delivers comparable hauling and towing capabilities:
    Estimated payload capacity of 2,700 pounds (1,225 kg)
    Estimated conventional towing capacity of 13,000 pounds (5,896 kg)
    Estimated fifth-wheel towing capacity of 15,600 pounds (7,076 kg).

The GMC Sierra All Terrain HD also features four-wheel drive, with automatic locking front and rear differentials, while the 14-inch, four-wheel disc brake system from the production Sierra HD provides the stopping power for this unique off-roader.

GMC SIERRA ALL TERRAIN HD CONCEPT SPECIFICATIONS
    Body style / driveline: 5-passenger crew cab, 3/4-ton 4-wheel-drive heavy-duty pickup
    Construction: body on frame
    Engine: Duramax 6.6L turbo-diesel
    Horsepower: 397 hp (296 kW) @ 3000 rpm
    Torque: 765 Nm (1037 lb.-ft) @ 1600 rpm
    Transmission: Allison 1000 six-speed automatic
    Suspension
        front: long- and short-arm independent with torsion bars
        rear: semi-elliptic two-stage multi-leaf spring
    Steering type: integral power-assisted recirculating ball
    Brakes (type): power-assisted, Hydroboost brake-apply system, four-wheel disc, four-wheel ABS
    Brake rotor (diameter x thickness)
        front: 13.97" x 1.57" / 355 x 40 mm
        rear: 14.17" x 1.34" / 360 x 34 mm
    Wheel size and type: 20 x 9.5-inch aluminum
    Tire type and size: BFGoodrich KM2 325/60R20
    Wheelbase: 148.6" / 3774 mm
    Overall length: 230.9" / 5864 mm
    Overall width: 83" / 2106 mm
    Overall height: 81.8" / 2077 mm
    Track
        front: 73" / 1853 mm
        rear: 73" / 1853 mm
    Minimum ground clearance
        21.1" / 536 mm (at rocker panels)
        11.8" / 300 mm (at skid plates)
    Approach angle
        front: 39°
        rear: 31°
    Maximum payload (est.): 2700 lbs. / 1225 kg
    Maximum towing capacity (est.)
        ball hitch: 13,000 lbs. / 5896 kg
        fifth-wheel hitch(est.): 15,600lbs. / 7076 kg

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GM EN-V Concept, 2010

 

 

 

GM EN-V Concept, 2010

By 2030, urban areas will be home to more than 60 percent of the world's 8 billion people. This will put tremendous pressure on a public infrastructure that is already struggling to meet the growing demand for transportation and basic services.

General Motors and its strategic partner, Shanghai Automotive Industry Corp. Group (SAIC), share a common vision for addressing the need for personal mobility through a radical change in personal urban transportation. They are exploring several solutions for tomorrow's drivers. Among the most promising is a new vehicle form called EN-V.

A Promising Solution
EN-V, which is short for Electric Networked-Vehicle, maintains the core principle of personal mobility - freedom - while helping remove the motor vehicle from the environmental debate and redefining design leadership. EN-V is a two-seat electric vehicle that was designed to alleviate concerns surrounding traffic congestion, parking availability, air quality and affordability for tomorrow's cities.

Three EN-V models were unveiled in Shanghai. They represent three different characteristics that emphasize the enjoyable nature of future transportation: Jiao (Pride), Miao (Magic) and Xiao (Laugh). The concepts will be showcased from May 1 through October 31 at the SAIC-GM Pavilion at World Expo 2010 Shanghai. Shanghai is expected to become one of the epicenters for the establishment of personal mobility solutions for the future.

Breakthrough Technology
GM EN-V Concept's platform has evolved from the platform of the Personal Urban Mobility and Accessibility (P.U.M.A.) prototype that was developed by Segway and debuted in April 2009. Segway has worked collaboratively with GM to develop and deliver multiple copies of the drivetrain platform that seamlessly connect to and power the various EN-Vs.

GM EN-V Concept is propelled by electric motors in each of its two driving-mode wheels. Dynamic stabilization technology empowers EN-V, giving it the unique ability to carry two passengers and light cargo in a footprint that's about a third of a traditional vehicle. It can literally "turn on a dime" within its own operating envelope. In addition, everything in EN-V is drive-by-wire, supporting its ability to operate autonomously or under manual control. The motors not only provide power for acceleration, but also bring the vehicle to a stop.

Power for the motors is provided by lithium-ion batteries that produce zero emissions. Recharging can occur from a conventional wall outlet using standard household power, allowing EN-V to travel at least 40 kilometers on a single charge. EN-V can also improve the efficiency of the public electric infrastructure since the vehicle can communicate with the electric grid to determine the best time to recharge based on overall usage.

By combining the Global Positioning System (GPS) with vehicle-to-vehicle communications and distance-sensing technologies, the EN-V concept can be driven both manually and autonomously.

Its autonomous operating capability offers the promise of reducing traffic congestion by allowing EN-V to automatically select the fastest route based on real-time traffic information. The concept also leverages wireless communications to enable a "social network" that can be used by drivers and occupants to communicate with friends or business associates while on the go.

This combination of sensing technology, wireless communication and GPS-based navigation establishes a technology foundation, pieces of which could migrate from the EN-V concept and potentially lead the way to future advanced vehicle safety systems.

The ability to communicate with other vehicles and with the infrastructure could dramatically reduce the number of vehicle accidents. Using vehicle-based sensor and camera systems, EN-V can "sense" what's around it, allowing the vehicle to react quickly to obstacles or changes in driving conditions. For example, if a pedestrian steps out in front of the vehicle, EN-V will decelerate to a slower and safer speed and stop sooner than today's vehicles.

GM has been a leader in developing autonomous vehicle technology, having worked alongside students and faculty at Carnegie Mellon University in the U.S. city of Pittsburgh, Pennsylvania. This collaboration created "The Boss" Chevrolet Tahoe, which brought autonomous vehicle operation to life in 2007. EN-V takes the lessons learned in "The Boss" and offers mobility to people who could not otherwise operate a vehicle.

GM EN-V Concept has been designed for the speed and range of today's urban drivers. It weighs less than 500 kilograms and is about 1.5 meters in length. By comparison, today's typical automobile weighs more than 1,500 kilograms and is three times as long. In addition, today's automobiles require more than 10 square meters of parking space and are parked more than 90 percent of the time. EN-V's smaller size and greater maneuverability mean the same parking lot can accommodate five times as many EN-Vs as typical automobiles.

Smaller, Smarter Design
While EN-V leads the way in terms of efficiency and technology, it also sets a new benchmark for vehicle design. For its debut, GM had design teams around the world provide their vision of what future mobility will look like. Xiao (Laugh) was designed by GM Holden's design team in Australia, while the look of Jiao (Pride) was penned by designers at GM Europe and Miao (Magic) was designed at the General Motors Advanced Design Studio in the U.S. state of California.

Each EN-V has a unique design theme to showcase the flexibility of the propulsion platform. The design gives each EN-V its own personality, with a unique opening, elegant interior and innovative color, lighting and seat technology. Xiao offers a more lighthearted appeal, with its "gumball blue" paint and nautical-inspired design. Miao takes most of its design cues from the consumer electronics industry, as evidenced by its sleek, masculine looks. Designers also used Miao to display innovative lighting solutions, including extensive use of LED accent lighting. With its clean lines and bright paintwork, Jiao takes its design influence from bullet trains and Chinese opera masks.

The body and canopy of GM EN-V Concept are constructed from carbon fiber, custom-tinted Lexan and acrylic, materials that are more commonly used in race cars, military airplanes and spacecraft because of their strength and lightweight characteristics. The ability to work with such innovative materials provided a learning opportunity for GM's design teams to study the feasibility of future traditional automotive applications.

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GM PUMA Concept, 2009

 

GM PUMA Concept, 2009

Dubbed Project P.U.M.A. (Personal Urban Mobility and Accessibility), GM and Segway are developing an electrically powered, two-seat prototype vehicle that has only two wheels. It could allow people to travel around cities more quickly, safely, quietly and cleanly - and at a lower total cost. The vehicle also enables design creativity, fashion, fun and social networking.

GM and Segway announced their collaboration, while demonstrating the Project P.U.M.A. prototype in New York City.

Trends indicate that urbanization is growing, and with that comes increased congestion and more competition for parking. Cities around the world are actively looking for solutions to alleviate congestion and pollution. Project P.U.M.A. addresses those concerns. It combines several technologies demonstrated by GM and Segway, including electric drive and batteries; dynamic stabilization (two-wheel balancing); all-electronic acceleration, steering and braking; vehicle-to-vehicle communications; and autonomous driving and parking. Those technologies integrate in Project P.U.M.A. to increase mobility freedom, while also enabling energy efficiency, zero emissions, enhanced safety, seamless connectivity and reduced congestion in cities.

Project P.U.M.A. vehicles will also allow designers to create new fashion trends for cars, and to focus on the passion and emotion that people express through their vehicles while creating solutions that anticipate the future needs of urban customers.

The Project P.U.M.A. prototype vehicle integrates a lithium-ion battery, digital smart energy management, two-wheel balancing, dual electric wheel motors, and a dockable user interface that allows off-board connectivity. The result is an advanced and functional concept that demonstrates the capabilities of technology that exists today.

Built to carry two or more passengers, it can travel at speeds up to 35 miles per hour (56 kph), with a range up to 35 miles (56 km) between recharges.

Since the introduction of the Segway Personal Transporter (PT), Segway has established itself as the leader in the small electric vehicle space. Its approach to congestion and environmental challenges is balanced with a strong understanding of the functional needs of its customers, enabling them to do more with less. Segway has delivered more than 60,000 lithium-ion batteries to the market.

GM has been a leader in "connected vehicle" technologies since it introduced OnStar in 1996. Today, this on-board communications package connects six million subscribers in North America to OnStar safety and security services. GM has also pioneered vehicle-to-vehicle (V2V) communications systems and transponder technology. These and additional connected vehicle technologies could ultimately enable vehicles that don't crash and drive themselves.

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BMW 3-Series Coupe, 2011 Convertible models

 

 BMW 3-Series Coupe

BMW has announced substantial enhancements to the 2011 BMW 3-Series Coupe and Convertible, including outstanding style updates for 328i and 335i models and a new engine for 335i models. The 2011 BMW 3-Series Coupe and Convertible models will go on sale in Spring 2010, and pricing will be announced closer to the on-sale date.

Fundamentally unchanged are each car's essential attributes of rear-wheel drive (xDrive is available on the Coupe), near-perfect 50-50 weight distribution, remarkably precise steering, and skillfully engineered suspension…all of which conspire to produce the uniquely satisfying driving experience that is quintessentially BMW.

All-new is the engine for the 335i model. Internally designated the "N55," this turbocharged, all-aluminum engine features essentially the same "short block" and 3.0-liter displacement of its predecessor, but benefits from five additional years worth of development and refinement. The result is an engine that is more responsive, more fuel efficient, and cleaner-running than its outstanding predecessor, but preserves the previous engine's output and soul: 300 horsepower and 300 lb-ft of torque, and a 7,000 rpm redline. The 6-speed manual gearbox - beloved by North American enthusiast drivers - remains standard, and the well-known 6-speed Steptronic automatic is optional, now featuring "pull-style" shift paddles on the multifunction steering wheel.

Design. Reflecting the legendary distinction of BMW Coupes and Convertibles

The profile of the BMW 3-Series Coupe and Convertible is instantly recognizable at first glance. Beyond the basic shape of the car and its classic lines, the new design of the headlights, the enhanced depth and detail of the taillights, the interior, and even the exterior mirrors were specifically created for the Coupe and Convertible. These unique design elements reflect the sporty character of the car. The driver who chooses a two-door vehicle desires a car with dynamic looks as well as driving performance. With this in mind, BMW engineers and designers set out to create a unique, unmistakable blend of design features and most importantly, driving pleasure.

It all begins with proportions. The new, long hood powerfully symbolizes BMW's loyalty to the inherently balanced inline-6 engine. The long wheelbase, short overhangs, the passenger compartment set aft and the low, sleek roofline which seamlessly slopes into the trunk are all characteristics of the BMW Coupe and BMW retractable hardtop Convertible.

In addition to the classic proportions, three design lines—the shoulder, character and lower sill lines— enhance the sleek appearance. Both the shoulder line and character line stretch uninterrupted to the back of the car, allowing one's eye to move quickly and smoothly from front to rear along the entire length of the car. The sill line of the lower edge of the door flows into the front and rear air dams, reinforcing the dynamic nature of newest BMW 3-Series Coupe and Convertible.

The combination of lines flowing into one another elegantly emphasizes the vehicles' performance potential. While the shoulder line rises slightly but consistently from front to rear, the character line flows in a long, stretched arch all the way from the front fender to the new taillights. As the sill line, by contrast, moves up slightly to the rear in a slow and gentle curve, the distance between the character and sill lines becomes smaller near the rear wheel arches. The fender flare around each rear wheel also serves to give the character line extra tension in both an upward and outward direction.

Attractive new innovations at the front, side, and rear - integrated precisely into the overall look of the car- give greater emphasis to the sportiness of both models. At the same time, these modifications slightly extend the overhangs front and rear (now 1.14" and 0.12" longer, respectively), which adds a sleeker and even more athletic appearance.

The new, widened kidney grille, a signature feature of every BMW, suits the broad new hood and stands out from the surfaces around it. Interaction with the three-dimensional kidney frame creates a look of power and unique style. The frame around the kidney grille now features a chrome band precisely twisted within itself.

The BMW 3-Series Coupe and Convertible come standard in the U.S. with Xenon Adaptive Headlights, accented by BMW's signature corona light rings. At the top, the new headlights merge into a trim bar cutting off the light beam to create that concentrated, focused look typical of a genuine BMW. The corona rings, now powered by super-bright LED light sources, can serve as daytime running lights (if that feature is activated), and also as evening city lights, making the Coupe and Convertible instantly recognizable as a BMW, day or night. The upper edge of each headlight fixture is also illuminated by an LED light source.

The new design of the taillights is unique to the BMW 3-Series Coupe and Convertible. The rear light cluster feature two-piece L-shapes and are further accentuated by a new color scheme. With two rows of light tubes that illuminate simultaneously, they create a night design with depth and dimension. Integrated flush into the body of the car, the lights are split into two sections and extend up the trunk lid, blending with the character lines from the side profile. Horizontal LED tube taillights give the car an unmistakable look at night. The horizontal flowing lines accentuate the wide track and low stance of the Coupe and Convertible.

An additional horizontal contour line has been added to the rear air dam to further accentuate the width of the Coupe and Convertible. It creates light-and-shade effects to give the entire rear end a flatter and smoother appearance.

The exterior mirrors also receive a new design, adding further innovation to the unique looks of the BMW 3-Series Coupe and Convertible. They blend harmoniously into the side view and silhouette of each new model.

Interior: a truly stylish ambiance
The emphasis on individual style, dynamic performance and exclusivity continues within the interior. Here again, the focus is on the driving experience, as announced by the standard leather multifunction steering wheel. Horizontal lines dominate the surfaces on and around the instrument panel which blend with the lines of the center console door panels to give the interior a light but dynamic feel. In true BMW fashion, all operational and informational elements essential to driving are grouped on and around the steering wheel. Climate controls, as well as those for the audio and navigation systems, are within easy reach of the front passenger.

Because the Coupe and Convertible are four-passenger cars, the rear seat passengers are treated to a center console between their individual rear seats which includes individual storage boxes, additional air outlet vents, and footwell lights.

The BMW 3-Series Coupe and Convertible come standard with Dark Burl Walnut wood trim. As a choice, Bamboo Anthracite wood, Light Burl Walnut wood, and Aluminum trim are optional. Like the standard Dark Burl Walnut, these materials appear on the dash, front and rear consoles, doors and rear side panels.

The standard leatherette upholstery is available in Black and Creme Beige. For the optional leather upholstery, luxurious Dakota leather can be chosen. Here too, the buyer may choose Creme Beige, Oyster, Coral Red, Saddle Brown, Gray, or Black. Upholstery leather appears on the seat facings, door inserts and door handle surrounds; other leather-trimmed items include the gear shift boot, handbrake grip and steering wheel.

In other items of trim that don't change with upholstery or trim options, the interior door handles, gearshift surround trim, steering wheel spokes, instrument dial and engine Start/Stop button surrounds, dash air-outlet adjusting tabs and the optional iDrive controller are in pearl-gray galvanic material.

An elegant ambiance is further created in the interior by special lighting and switches with a premium look and feel. Ambiance lighting, streaming down from under the ledge on the door and side panels, and running from the A pillar all the way to the rear passenger area, creates a particularly warm, indirect lighting effect.

Through its design and configuration, the cabin emphasizes the sporting and driver-oriented character of the BMW 3-Series Coupe and Convertible. Taking a seat behind the steering wheel, the driver's eyes will immediately focus on the instrument cluster.

All-new turbocharged engine with Valvetronic for 335i

BMW 3-Series Coupe and Convertible customers have a choice of two inline-6 engines that are the worlds' finest. The 328i features 230 horsepower while the 335i has 300 horsepower and is the first inline-6 equipped with a single twin-scroll turbocharger, BMW's Valvetronic throttle-less intake technology, High Precision direct fuel injection, and all-aluminum construction.

The 335i's new inline-6 engine displaces 3.0-liters and develops maximum output of 300 hp at 5,800 rpm, with peak torque of 300 lb-ft available all the way from 1,200-5,000 rpm. Redline is 7,000 rpm. This is the same level of performance as the previous 3.0-liter twin-turbo inline-6 but with the innovation of twin-scroll technology and the integration of Valvetronic, this new engine is even more fuel efficient.

Historically, BMW engineers were never satisfied with the most often-cited downside to turbocharging: the frustrating "turbo lag" that occurs between the time at which driver presses the accelerator pedal and when the turbocharger develops sufficient rotation to increase power. Turbo lag is usually worse at low engine speeds. Other drawbacks included relatively high fuel consumption and poor emissions output. At the time, turbocharger technology was not a reliable, practical or efficient was to make power. For these and other reasons, BMW put turbocharged gasoline engines on the shelf for more than 20 years.

Two recent developments caused BMW to reconsider turbocharging. While many luxury-performance carmakers began to achieve power gains by building engines of ever-increasing displacement, BMW looked for a more efficient way; smaller engines and turbocharging made sense. Also, the technology transfer from BMW's turbocharged diesel engines could easily be transferred to their gasoline-fired counterparts. Accordingly, BMW articulated its new approach to developing high-performance engines as part of its EfficientDynamics initiative.

The new N55 is the first BMW inline-6 to combine turbocharging, High Precision direct fuel injection, and Valvetronic variable intake technology. It features a single, mid-sized turbocharger with a "twin-scroll" housing to boost performance and minimize the response lag. Thanks to its housing design which maintains proper separation between streams of exhaust gasses, the turbocharger builds up pressure much faster than previous-generation turbochargers, thus eliminating even the slightest tendency for lag.

A further advantage of turbocharging is that this is the most weight-efficient method to boost engine power and performance. The N55 turbocharged inline-6 weighs approximately 150 lbs. less than an equally powerful eight-cylinder engine displacing 4.0 liters. This lower weight means a significant advantage not only in fuel economy, but also in balancing the car's weight distribution.

Using Valvetronic for the first time on a turbocharged inline-6 allows the engine to "inhale" air for combustion with virtually no delay and with reduced pumping losses. As a result, the engine makes power more quickly than ever before, and this is proven by the N55's ability to reach peak torque at 1200rpm, 200rpm earlier than its predecessor.

As a result, the technology in the BMW 335i Coupe and Convertible represents a significant achievement in terms of both performance and fuel efficiency. The advantages over a conventional turbocharged engine are not only clearly measurable, but easy to feel on the road.

Turbocharging typically includes intercooling of the engine's induction air, that is, cooling the compressed air that emerges, very much heated up by the compression process, from the turbocharger(s). Sometimes it's done with coolant; in the case of the N55 engine, it's accomplished with outside air. Intercooling is necessary to reduce the temperature of the incoming air to preclude detonation or "knocking" that can reduce power or, in the extreme, damage the engine. Of course, the N55, like all other current BMW engines, is equipped with knock control as part of the Digital Motor Electronics (DME) engine management system. On the N55 engine, the DME is now mounted directly to the top of the engine for better packaging and weight savings.

The significant loads and cylinder pressures of the N55 300-hp engine required the use of an aluminum engine structure with cast-iron cylinder sleeves. Altogether, the N55 weighs about 427 lbs. The 335i Coupe and Convertible dual exhaust system runs at both sides of the vehicle. At low loads, a flap channels most gas through one side to reduce low-frequency exhaust "rumble." The 335i Coupe and Convertible feature an air-to-oil external oil cooler mounted in one wheel well as opposed to the N52's coolant-to-oil unit.

The peak power of 300 hp at 5800rpm has already been mentioned; this is fully 70 hp up on the 2011 328i models. At least as important is the fact that this engine can deliver its peak torque from 1200 rpm - not far above idling - to 5000 rpm. On the road, this power and torque result in outstanding performance. The 335i Coupe and Convertible can accelerate from 0 - 60 mph in just 5.3 (5.5) seconds and 5.5 (5.7) seconds, respectively, when equipped with the manual (automatic) transmission. The sense of urgency continues all the way to the electronically limited top speed of 130 mph (150 mph when equipped with the optional Sport Package). The 335i xDrive coupe accelerates 0-60 mph in 5.2 (5.3) seconds when equipped with the manual (automatic) transmission.

Finally, the new N55 engine is able to achieve a more favorable emissions signature than its predecessor. The single turbocharger has only one exhaust path and feeds a single catalytic converter in place of the previous engine's two. This means the exhaust gases are concentrated at the catalytic converter for better cold-start emissions performance, making the N55 a more environmentally friendly engine.

The 328i Convertible is powered by BMW's 230 horsepower, 200 lb-ft, 3.0-liter inline-6 engine, known internally as the N52. Its magnesium/aluminum construction and Valvetronic variable valve lift are features found only on BMW engines. The N52 achieves impressive progress on all performance and technology fronts, especially in its remarkably light weight of 357 lbs. An aluminum/magnesium engine block, hollow camshafts, plastic camshaft cover, improved combustion chambers, a further evolved Double VANOS[1], higher fuel injection pressure, sophisticated engine electronics, an electric coolant pump, a variable-volume oil pump and an oil/coolant heat exchanger are the other weight-saving features and improvements of this engine over previous generations.

For the Coupes: Available xDrive intelligent all-wheel drive.
The 2011 BMW 335i xDrive Coupe combines intelligent all-wheel drive with the power of BMW's new 300-horsepower, turbocharged 3.0-liter inline-6 engine. Likewise, the 2011 BMW 328i xDrive Coupe will impress with its 230-hp, 3.0-liter inline-6 engine featuring magnesium-aluminum construction. On smooth, dry roads BMW's xDrive gives a sporty, rear-wheel drive feel. But on a wet or snow-covered road, xDrive automatically sends more torque to the axle with more traction. BMW's xDrive is the most sophisticated and responsive all-wheel drive system on the market today. It has proven its merits, in terms of agility and safety, in the 19 BMW models currently offered with xDrive in the U.S.

For the Convertibles: Sun-Reflective Leather offers cooler seats
BMW is the first carmaker in the world to use sun-reflective technology to mitigate temperatures on leather seating, armrest surfaces, headrests, and gear shifter. The process uses modified color pigments imbedded in the leather during the production process to reflect the infrared radiation of the sun in wavelengths of more than 720 nanometers.

Read more...

BMW 3-Series Convertible, 2011

 

BMW 3-Series Convertible, 2011

BMW has announced substantial enhancements to the 2011 BMW 3-Series Convertible and Coupe, including outstanding style updates for 328i and 335i models and a new engine for 335i models. The 2011 BMW 3-Series Convertible and Coupe models will go on sale in Spring 2010, and pricing will be announced closer to the on-sale date.

Fundamentally unchanged are each car's essential attributes of rear-wheel drive (xDrive is available on the Coupe), near-perfect 50-50 weight distribution, remarkably precise steering, and skillfully engineered suspension…all of which conspire to produce the uniquely satisfying driving experience that is quintessentially BMW.

All-new is the engine for the 335i model. Internally designated the "N55," this turbocharged, all-aluminum engine features essentially the same "short block" and 3.0-liter displacement of its predecessor, but benefits from five additional years worth of development and refinement. The result is an engine that is more responsive, more fuel efficient, and cleaner-running than its outstanding predecessor, but preserves the previous engine's output and soul: 300 horsepower and 300 lb-ft of torque, and a 7,000 rpm redline. The 6-speed manual gearbox - beloved by North American enthusiast drivers - remains standard, and the well-known 6-speed Steptronic automatic is optional, now featuring "pull-style" shift paddles on the multifunction steering wheel.

Design. Reflecting the legendary distinction of BMW Coupes and Convertibles

The profile of the BMW 3-Series Convertible and Coupe is instantly recognizable at first glance. Beyond the basic shape of the car and its classic lines, the new design of the headlights, the enhanced depth and detail of the taillights, the interior, and even the exterior mirrors were specifically created for the Convertible and Coupe. These unique design elements reflect the sporty character of the car. The driver who chooses a two-door vehicle desires a car with dynamic looks as well as driving performance. With this in mind, BMW engineers and designers set out to create a unique, unmistakable blend of design features and most importantly, driving pleasure.

It all begins with proportions. The new, long hood powerfully symbolizes BMW's loyalty to the inherently balanced inline-6 engine. The long wheelbase, short overhangs, the passenger compartment set aft and the low, sleek roofline which seamlessly slopes into the trunk are all characteristics of the BMW Coupe and BMW retractable hardtop Convertible.

In addition to the classic proportions, three design lines—the shoulder, character and lower sill lines— enhance the sleek appearance. Both the shoulder line and character line stretch uninterrupted to the back of the car, allowing one's eye to move quickly and smoothly from front to rear along the entire length of the car. The sill line of the lower edge of the door flows into the front and rear air dams, reinforcing the dynamic nature of newest BMW 3-Series Convertible and Coupe.

The combination of lines flowing into one another elegantly emphasizes the vehicles' performance potential. While the shoulder line rises slightly but consistently from front to rear, the character line flows in a long, stretched arch all the way from the front fender to the new taillights. As the sill line, by contrast, moves up slightly to the rear in a slow and gentle curve, the distance between the character and sill lines becomes smaller near the rear wheel arches. The fender flare around each rear wheel also serves to give the character line extra tension in both an upward and outward direction.

Attractive new innovations at the front, side, and rear - integrated precisely into the overall look of the car- give greater emphasis to the sportiness of both models. At the same time, these modifications slightly extend the overhangs front and rear (now 1.14" and 0.12" longer, respectively), which adds a sleeker and even more athletic appearance.

The new, widened kidney grille, a signature feature of every BMW, suits the broad new hood and stands out from the surfaces around it. Interaction with the three-dimensional kidney frame creates a look of power and unique style. The frame around the kidney grille now features a chrome band precisely twisted within itself.

The BMW 3-Series Convertible and Coupe come standard in the U.S. with Xenon Adaptive Headlights, accented by BMW's signature corona light rings. At the top, the new headlights merge into a trim bar cutting off the light beam to create that concentrated, focused look typical of a genuine BMW. The corona rings, now powered by super-bright LED light sources, can serve as daytime running lights (if that feature is activated), and also as evening city lights, making the Convertible and Coupe instantly recognizable as a BMW, day or night. The upper edge of each headlight fixture is also illuminated by an LED light source.

The new design of the taillights is unique to the BMW 3-Series Convertible and Coupe. The rear light cluster feature two-piece L-shapes and are further accentuated by a new color scheme. With two rows of light tubes that illuminate simultaneously, they create a night design with depth and dimension. Integrated flush into the body of the car, the lights are split into two sections and extend up the trunk lid, blending with the character lines from the side profile. Horizontal LED tube taillights give the car an unmistakable look at night. The horizontal flowing lines accentuate the wide track and low stance of the Convertible and Coupe.

An additional horizontal contour line has been added to the rear air dam to further accentuate the width of the Convertible and Coupe. It creates light-and-shade effects to give the entire rear end a flatter and smoother appearance.
The exterior mirrors also receive a new design, adding further innovation to the unique looks of the BMW 3-Series Convertible and Coupe. They blend harmoniously into the side view and silhouette of each new model.

Deep Sea Blue Metallic, Vermillion Red Metallic, and Mineral White Metallic exterior colors will each become available for the new BMW 3-Series Convertible and Coupe this spring.

Interior: a truly stylish ambiance
The emphasis on individual style, dynamic performance and exclusivity continues within the interior. Here again, the focus is on the driving experience, as announced by the standard leather multifunction steering wheel. Horizontal lines dominate the surfaces on and around the instrument panel which blend with the lines of the center console door panels to give the interior a light but dynamic feel. In true BMW fashion, all operational and informational elements essential to driving are grouped on and around the steering wheel. Climate controls, as well as those for the audio and navigation systems, are within easy reach of the front passenger.

The BMW 3-Series Convertible and Coupe come standard with Dark Burl Walnut wood trim. As a choice, Bamboo Anthracite wood, Light Burl Walnut wood, and Aluminum trim are optional. Like the standard Dark Burl Walnut, these materials appear on the dash, front and rear consoles, doors and rear side panels.

The standard leatherette upholstery is available in Black and Creme Beige. For the optional leather upholstery, luxurious Dakota leather can be chosen. Here too, the buyer may choose Creme Beige, Oyster, Coral Red, Saddle Brown, Gray, or Black. Upholstery leather appears on the seat facings, door inserts and door handle surrounds; other leather-trimmed items include the gear shift boot, handbrake grip and steering wheel.

Through its design and configuration, the cabin emphasizes the sporting and driver-oriented character of the BMW 3-Series Convertible and Coupe. Taking a seat behind the steering wheel, the driver's eyes will immediately focus on the instrument cluster.

All-new turbocharged engine with Valvetronic for 335i
BMW 3-Series Convertible and Coupe customers have a choice of two inline-6 engines that are the worlds' finest. The 328i features 230 horsepower while the 335i has 300 horsepower and is the first inline-6 equipped with a single twin-scroll turbocharger, BMW's Valvetronic throttle-less intake technology, High Precision direct fuel injection, and all-aluminum construction.

The 335i's new inline-6 engine displaces 3.0-liters and develops maximum output of 300 hp at 5,800 rpm, with peak torque of 300 lb-ft available all the way from 1,200-5,000 rpm. Redline is 7,000 rpm. This is the same level of performance as the previous 3.0-liter twin-turbo inline-6 but with the innovation of twin-scroll technology and the integration of Valvetronic, this new engine is even more fuel efficient.

Historically, BMW engineers were never satisfied with the most often-cited downside to turbocharging: the frustrating "turbo lag" that occurs between the time at which driver presses the accelerator pedal and when the turbocharger develops sufficient rotation to increase power. Turbo lag is usually worse at low engine speeds. Other drawbacks included relatively high fuel consumption and poor emissions output. At the time, turbocharger technology was not a reliable, practical or efficient was to make power. For these and other reasons, BMW put turbocharged gasoline engines on the shelf for more than 20 years.

Two recent developments caused BMW to reconsider turbocharging. While many luxury-performance carmakers began to achieve power gains by building engines of ever-increasing displacement, BMW looked for a more efficient way; smaller engines and turbocharging made sense. Also, the technology transfer from BMW's turbocharged diesel engines could easily be transferred to their gasoline-fired counterparts. Accordingly, BMW articulated its new approach to developing high-performance engines as part of its EfficientDynamics initiative.

The new N55 is the first BMW inline-6 to combine turbocharging, High Precision direct fuel injection, and Valvetronic variable intake technology. It features a single, mid-sized turbocharger with a "twin-scroll" housing to boost performance and minimize the response lag. Thanks to its housing design which maintains proper separation between streams of exhaust gasses, the turbocharger builds up pressure much faster than previous-generation turbochargers, thus eliminating even the slightest tendency for lag.

A further advantage of turbocharging is that this is the most weight-efficient method to boost engine power and performance. The N55 turbocharged inline-6 weighs approximately 150 lbs. less than an equally powerful eight-cylinder engine displacing 4.0 liters. This lower weight means a significant advantage not only in fuel economy, but also in balancing the car's weight distribution.

Using Valvetronic for the first time on a turbocharged inline-6 allows the engine to "inhale" air for combustion with virtually no delay and with reduced pumping losses. As a result, the engine makes power more quickly than ever before, and this is proven by the N55's ability to reach peak torque at 1200rpm, 200rpm earlier than its predecessor.

As a result, the technology in the BMW 335i Convertible and Coupe represents a significant achievement in terms of both performance and fuel efficiency. The advantages over a conventional turbocharged engine are not only clearly measurable, but easy to feel on the road.

Turbocharging typically includes intercooling of the engine's induction air, that is, cooling the compressed air that emerges, very much heated up by the compression process, from the turbocharger(s). Sometimes it's done with coolant; in the case of the N55 engine, it's accomplished with outside air. Intercooling is necessary to reduce the temperature of the incoming air to preclude detonation or "knocking" that can reduce power or, in the extreme, damage the engine. Of course, the N55, like all other current BMW engines, is equipped with knock control as part of the Digital Motor Electronics (DME) engine management system. On the N55 engine, the DME is now mounted directly to the top of the engine for better packaging and weight savings.

The significant loads and cylinder pressures of the N55 300-hp engine required the use of an aluminum engine structure with cast-iron cylinder sleeves. Altogether, the N55 weighs about 427 lbs. The 335i Convertible and Coupe dual exhaust system runs at both sides of the vehicle. At low loads, a flap channels most gas through one side to reduce low-frequency exhaust "rumble." The 335i Convertible and Coupe feature an air-to-oil external oil cooler mounted in one wheel well as opposed to the N52's coolant-to-oil unit.

The peak power of 300 hp at 5800rpm has already been mentioned; this is fully 70 hp up on the 2011 328i models. At least as important is the fact that this engine can deliver its peak torque from 1200 rpm - not far above idling - to 5000 rpm. On the road, this power and torque result in outstanding performance. The 335i Convertible and Coupe can accelerate from 0 - 60 mph in just 5.3 (5.5) seconds and 5.5 (5.7) seconds, respectively, when equipped with the manual (automatic) transmission. The sense of urgency continues all the way to the electronically limited top speed of 130 mph (150 mph when equipped with the optional Sport Package). The 335i xDrive coupe accelerates 0-60 mph in 5.2 (5.3) seconds when equipped with the manual (automatic) transmission.

The 328i Convertible is powered by BMW's 230 horsepower, 200 lb-ft, 3.0-liter inline-6 engine, known internally as the N52. Its magnesium/aluminum construction and Valvetronic variable valve lift are features found only on BMW engines. The N52 achieves impressive progress on all performance and technology fronts, especially in its remarkably light weight of 357 lbs. An aluminum/magnesium engine block, hollow camshafts, plastic camshaft cover, improved combustion chambers, a further evolved Double VANOS[1], higher fuel injection pressure, sophisticated engine electronics, an electric coolant pump, a variable-volume oil pump and an oil/coolant heat exchanger are the other weight-saving features and improvements of this engine over previous generations.

For the Coupes: Available xDrive intelligent all-wheel drive.
The 2011 BMW 335i xDrive Coupe combines intelligent all-wheel drive with the power of BMW's new 300-horsepower, turbocharged 3.0-liter inline-6 engine. Likewise, the 2011 BMW 328i xDrive Coupe will impress with its 230-hp, 3.0-liter inline-6 engine featuring magnesium-aluminum construction. On smooth, dry roads BMW's xDrive gives a sporty, rear-wheel drive feel. But on a wet or snow-covered road, xDrive automatically sends more torque to the axle with more traction. BMW's xDrive is the most sophisticated and responsive all-wheel drive system on the market today. It has proven its merits, in terms of agility and safety, in the 19 BMW models currently offered with xDrive in the U.S.

For the Convertibles: Sun-Reflective Leather offers cooler seats
BMW is the first carmaker in the world to use sun-reflective technology to mitigate temperatures on leather seating, armrest surfaces, headrests, and gear shifter. The process uses modified color pigments imbedded in the leather during the production process to reflect the infrared radiation of the sun in wavelengths of more than 720 nanometers.

This leather treatment is able to reduce surface temperatures on dark interior colors by up to 20 Celsius degrees (36 Fahrenheit degrees), and also offers advantages on light-colored upholstery, where the heating effect of sunshine is less severe, reducing the surface temperature by as much as 15 Celsius degrees (27 Fahrenheit degrees). All other qualities of the leather remained unchanged.

Read more...