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Showing posts with label BMW. Show all posts
Showing posts with label BMW. Show all posts

BMW 3-Series Coupe, 2011 Convertible models

>> Thursday, September 8, 2011

 
 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...

BMW EfficientDynamics Concept

>> Saturday, March 20, 2010

BMW EfficientDynamics Concept 2009


The BMW Vision concept car clearly demonstrates that the EfficientDynamics objectives are fully compatible when applied to a sports car. Conceived as a 2+2-seater with plug-in full-hybrid technology, the unique car combines the performance of a BMW M vehicle with a standard of fuel efficiency and emission management that exceeds even the current levels achieved by the latest small cars. The outstanding result is made possible by the combination of BMW ActiveHybrid components with an extremely economical combustion engine, and outstanding aerodynamic qualities.

BMW EfficientDynamics Concept for the first time conveys the dynamic look of a BMW sports car to a hybrid vehicle. Developed with decades of experience in Motorsport, the body of this unique sports car is a result of intelligent lightweight technology and aerodynamic efficiency. In the design of the interior, the focus was likewise on both the fascinating driving experience and, in particular, on transparent, hands-on technology and maximum reduction of weight.

Turbodiesel engine with unprecedented specific output.
The combustion engine is a cutting-edge turbodiesel featured for the first time in the BMW EfficientDynamics Concept car. Displacing 1.5 liters on three cylinders, the engine consistently follows the downsizing principle of using a relatively small engine combined with a turbocharger to reduce fuel consumption.

Two electric motors for full-hybrid drive.
The combustion engine is supplemented by two electric motors. Consistently applying the BMW ActiveHybrid philosophy, development engineers followed the principle of "Best of Hybrid," choosing the optimum combination of a hybrid synchronous motor on the front axle and a full-hybrid system at the rear.

The engine, a hybrid synchronous motor, offers continuous output of 80 horsepower and peak torque of 162 lb-ft. Extra power of 112 horsepower is available for a period of up to 30 seconds, and, for a 10-second "burst," the electric motor is able to develop 139 horsepower. The power is transmitted through a 2-stage, single-speed reduction gearbox.

BMW EfficientDynamics Concept is able to run completely under electric power, with the power of the turbodiesel engine alone, or through an infinite combination of the three power sources. Depending on driving conditions, the two electric motors may be used both for accelerating and for regenerating energy when applying the brakes and while coasting. For a short time, such as in passing maneuvers, the cumulative maximum output of all three engines increases to 356 hp, with maximum torque generated by the three engines reaching 590 lb-ft.
The lithium-polymer battery for electrical energy.
The energy cells featured in BMW EfficientDynamics Concept are housed in a chassis element running from front to rear through the middle of the car. The front unit is the lithium-polymer complex, an ongoing development of the lithium-ion battery. Overall, BMW EfficientDynamics Concept comes with a total of 98 lithium-polymer cells, each offering a capacity of 30 amp/hours and developing continuous output of 600 Amps at a voltage of 3.7 V. For a period of 30 seconds, each cell is even able to develop maximum output of 1,200 Amps.

The Plug-in solution: convenient charging of the electric power system from a conventional power socket.

Brake Energy Regeneration captures electric power generated while driving without additional fuel consumption, which is subsequently used to supply power to the electric motors and on-board network. A further option is to connect the lithium-polymer cells to a conventional power socket for a simple and efficient charge process, using a plug-in connector in the front-right wing of the car. Connected to a standard EU power outlet (220 V, 16 Amps), the system requires a maximum of 2 ½ hours to fully charge the lithium-polymer cells. And wherever a power source with higher voltage and amperage (380 V, 32 Amps) is available, the charge time is an even shorter 44 minutes.

The Fuel efficiency and emission management opening new dimensions in hybrid technology.

The power delivered by the two electric motors and single diesel 3-cylinder engine gives the BMW EfficientDynamics Concept a level of performance superior to anything provided so far by a hybrid vehicle. Acceleration from a standstill to 100 km/h, for example, comes in just 4.8 seconds and the car could exceed its electronically-limited 155 mph top speed.

As a plug-in hybrid, BMW EfficientDynamics Concept is able to cover the entire drive cycle for measuring fuel consumption also with its combustion engine completely switched off. Then, to subsequently charge the lithium-polymer cells to the same status as when setting off, all the driver has to do is connect the car to an external power grid. To determine the consumption of electric power, the only requirement is to compare the charge level of the battery before and after the test cycle. Applying this measurement process, the BMW EfficientDynamics Concept car consumes 17.5 kW/h per 100 kilometers, equal to a CO2 emission rating of just 50 grams per kilometer in the EU test cycle.

Aerodynamic qualities reflecting BMW's Motorsport experience.
BMW EfficientDynamics Concept also takes a new approach in its design and streamlining, the body and the interior clearly expressing the unique combination of supreme efficiency and the sporting performance of the brand. Following BMW's design language, this concept car visualizes both highly efficient aerodynamics and intelligent lightweight construction.

In its design, BMW EfficientDynamics Concept differs from the usual low-emission car concepts. The principle of "form follows function" is not just for the overall look of the car, but embraces each and every detail. Measuring 48.8" in height and boasting a sweeping, arch-like roofline, BMW EfficientDynamics Concept offers the slender silhouette of a classic Gran Turismo. With the combustion engine fitted in front of the rear axle, the designers have succeeded in giving the car a very low front end, with the flow of air being further smoothened by active louvers in front of the radiator, which close completely when the need for cooling air is low.

Overall vehicle concept for a drag coefficient of just 0.22.

To further optimize the aerodynamic qualities of the entire vehicle and keep rolling resistance to a minimum, BMW EfficientDynamics Concept comes with tires and wheels of quite unusual size on a sports car. The tires measure 195/55, while large 21-inch wheels provide a contact surface on the road otherwise offered only by a much wider tire. In combination with the sophisticated axle geometry, this ensures agile driving behavior.

The extra-large wheel covers extending over part of the tire flanks add to the unique, very different look of BMW EfficientDynamics Concept from the side. The blade profile integrated in the wheels serves furthermore to reduce the negative effect of the turning wheels on the overall aerodynamics of the car. In all, these features optimizing the aerodynamic qualities of the car give the BMW EfficientDynamics Concept car a very low drag factor (CX) of just 0.22.

Technological look as a strong impression of intelligent lightweight construction.
In both exterior and interior design, BMW EfficientDynamics Concept stands out clearly as a strong spearhead in technology. Many components of the vehicle are presented in full view expressing the "transparent" character of the car as a powerful visual feature of lightweight technology. The chassis and suspension of BMW EfficientDynamics Concept are made completely of aluminum; the roof and the outer skin on the doors are made almost completely of a special polycarbonate glass automatically darkening as a function of the light shining on the car.

Emotional design through sculptural shapes and layering technology.
Reflecting the innovative drive concept of this unique car, the design of BMW EfficientDynamics Concept likewise takes a new approach in combining functional progress with a most powerful emotional impact.

Sculptural design language giving BMW EfficientDynamics Concept a fully harmonized, complete look ensures the proportions typical of a BMW sports car. The front, side, rear and roof areas, for example, flow smoothly into one another. Dynamically contoured surfaces and shapes, in turn, create highly attractive light and shade effects accentuating the light and sporting character of the car in an emotional manner.

Interior:
innovative lightweight construction and unprecedented orientation to the driver.
Innovative layering technology provides an unprecedented symbiosis of function and stylish shapes intentionally reduced to a minimum, consistently implementing and visualizing the lightweight principle also inside the car.

Innovative light technology: providing clear signals to the outside and offering soothing ambient illumination inside in a unique symbiosis.

LED lights at both the front and rear end of BMW EfficientDynamics Concept provide an innovative combination of the symbols typical of the brand and clear design language oriented towards trendsetting technology. The distinctive look of the dual round headlights characteristic of a BMW is emphasized in particular by the use of LED technology. The rear lights are integrated also in their function into the design of the entire rear section, forming part of the rear air deflector and thus merging completely into the rear contour.

Overhead doors for convenient access to all seats.
The doors on BMW EfficientDynamics Concept open up like bird's wings, turning on pivots in the front roof column at the level of the side direction indicators. Since the car has no B-pillars, the large door cutouts ensure convenient entry also to the rear seats. The pivots on the doors also provide the base for the exterior mirrors, thus forming an ideal combination of function and aesthetic design.

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BMW X6 UK Version

>> Wednesday, March 10, 2010

BMW X6 UK Version




In 1999 BMW broke the four-wheel-drive mould when it launched the X5 Sports Activity Vehicle. With a bias towards excellent on-road performance combined with a dynamic design and a premium interior, the BMW X5 was an instant success. And it's a winning formula that has, unlike most other models, led to increasing sales during its lifecycle with the biggest annual UK sales coming in its penultimate year. The timing of the BMW X5 was perfect and it reflected buyers' lifestyles and their desire for something unique in the marketplace.

The concept of the new BMW X6 is best considered in relation to the link between the BMW 3 Series Saloon, Touring, Coupé and Convertible. People buy all four versions of the 3 Series depending on their circumstances and needs. The same will be the case for the BMW X6 compared to other BMW X models.

BMW X6 UK Version
The BMW X6 is undeniably a niche car with BMW UK expecting to sell approximately 1,600 X6s in its first year - by comparison an average of 7,000 X5s are sold every year. Research has shown that three key buyer profiles exist:

A quartet of turbocharged engines
For the first time in BMW's history a model range has been launched solely powered by turbocharged engines. The BMW X6 xDrive35i is powered by the twin-turbocharged 2007 and 2008 International Engine of the Year winner that produces 306hp. This power plant is capable of propelling the X6 xDrive35i from zero to 62mph in 6.7 seconds and on to a top speed of 149mph. The 2,979cc-engined X6 is still capable of achieving a combined 25.9mpg and a CO2 figure of 262g/km.

The BMW X6 xDrive30d and the BMW X6 xDrive35d also both have award-winning power plants under their bonnets. The former, a single turbocharged unit produces 235hp from its 2,993cc block, while the latter ups the ante by offering 286hp from the same capacity engine but aided by twin-turbochargers.

The BMW X6 xDrive30d, which is likely to become the biggest selling X6 variant over time, reaches 62mph from zero in 8.0 seconds before going on to a top speed of 137mph. Emissions and economy figures are equally impressive, recording 217g/km and 34.4mpg respectively. The low CO2 output is enough for the car to qualify for a lower Vehicle Excise Duty band, compared to rival products, and continue to be an £8-a-day Congestion Charge vehicle in London should current proposals become statute.

The BMW X6 xDrive35d sprints from zero to 62mph in 6.9 seconds before going on to a top speed of 147mph. It too sits under the 225g/km higher Vehicle Excise Duty and Congestion Charge strata. The twin-turbocharged diesel records an emissions figure of 220g/km, while also being capable of 34.0mpg.

Completing the awesome foursome of powerplants is a new twin-turbocharged, high-precision direct injection, 4.4-litre V8 engine producing 408hp. This all-new engine, not seen in any other BMW product before, is the most powerful production non-M BMW V8 engine ever and makes the flagship X6 the most powerful production X product. It can reach 62mph from standstill in 5.4 seconds - quicker than a Porsche Boxster - before going on to an electronically-limited top speed of 155mph.


Brake Energy Regeneration is standard across the range and combines with active aerodynamics and low viscosity fluids in the steering and transmission systems. Third-generation common-rail technology diesel-engined cars and high-precision direct injection on the petrol models both serve to optimise the combustion process.

A new high in dynamic capability
The power of the BMW X6 is harnessed by an advanced chassis that incorporates Dynamic Performance Control for the first time on a BMW. Dynamic Performance Control offers drivers class-leading cornering ability courtesy of a complex multi-clutch differential that, effectively, helps drive the vehicle around a bend.

A conventional differential wastes power through wheel slip during cornering. A limited-slip differential locks out an unloaded wheel to transfer drive to the wheel with most grip - but the locked wheel can act as a drag on performance. However, Dynamic Performance Control improves on the traditional, performance oriented limited-slip differential. It allows an inside wheel to still deliver power and provide drive, while at the same time sending more drive to the outside wheel that has more grip. The result, combined with one of the most advanced stability control systems available, is a vehicle that out performs the current benchmark BMW X5 and some sports cars in terms of dynamic capability.

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BMW EfficientDynamics Concept

>> Monday, January 11, 2010

BMW EfficientDynamics Concept



The BMW Vision concept car clearly demonstrates that the EfficientDynamics objectives are fully compatible when applied to a sports car. Conceived as a 2+2-seater with plug-in full-hybrid technology, the unique car combines the performance of a BMW M vehicle with a standard of fuel efficiency and emission management that exceeds even the current levels achieved by the latest small cars. The outstanding result is made possible by the combination of BMW ActiveHybrid components with an extremely economical combustion engine, and outstanding aerodynamic qualities.

Turbodiesel engine with unprecedented specific output.
The combustion engine is a cutting-edge turbodiesel featured for the first time in the BMW EfficientDynamics Concept car. Displacing 1.5 liters on three cylinders, the engine consistently follows the downsizing principle of using a relatively small engine combined with a turbocharger to reduce fuel consumption.

2 electric motors for full-hybrid drive.
The combustion engine is supplemented by two electric motors. Consistently applying the BMW ActiveHybrid philosophy, development engineers followed the principle of "Best of Hybrid," choosing the optimum combination of a hybrid synchronous motor on the front axle and a full-hybrid system at the rear.

The engine, a hybrid synchronous motor, offers continuous output of 80 horsepower and peak torque of 162 lb-ft. Extra power of 112 horsepower is available for a period of up to 30 seconds, and, for a 10-second "burst," the electric motor is able to develop 139 horsepower. The power is transmitted through a 2-stage, single-speed reduction gearbox.

The lithium-polymer battery for electrical energy.
The energy cells featured in BMW EfficientDynamics Concept are housed in a chassis element running from front to rear through the middle of the car. The front unit is the lithium-polymer complex, an ongoing development of the lithium-ion battery. Overall, BMW EfficientDynamics Concept comes with a total of 98 lithium-polymer cells, each offering a capacity of 30 amp/hours and developing continuous output of 600 Amps at a voltage of 3.7 V. For a period of 30 seconds, each cell is even able to develop maximum output of 1,200 Amps.

The power delivered by the two electric motors and single diesel 3-cylinder engine gives the BMW EfficientDynamics Concept a level of performance superior to anything provided so far by a hybrid vehicle. Acceleration from a standstill to 100 km/h, for example, comes in just 4.8 seconds and the car could exceed its electronically-limited 155 mph top speed.

The fuel efficiency and emission management now reach a standard only achieved, if at all, by far less powerful small cars conceived for city traffic and short distances. Applying the criteria of the EU test cycle, BMW EfficientDynamics Concept offers average fuel consumption equal to 62.6 mpg. CO2 emissions, in turn, are 99 grams per kilometer. These consumption and emission figures are measured on a consistent internal power balance, meaning that the batteries and storage media for electrical energy maintain the same charge level throughout the entire test cycle (with the same level at the beginning and end) and are charged while driving only by the car's on-board systems.

The aerodynamic qualities reflecting BMW's Motorsport experience.
BMW EfficientDynamics Concept also takes a new approach in its design and streamlining, the body and the interior clearly expressing the unique combination of supreme efficiency and the sporting performance of the brand. Following BMW's design language, this concept car visualizes both highly efficient aerodynamics and intelligent lightweight construction.

Vehicle concept for a drag coefficient of just 0.22.
The extra-large wheel covers extending over part of the tire flanks add to the unique, very different look of BMW EfficientDynamics Concept from the side. The blade profile integrated in the wheels serves furthermore to reduce the negative effect of the turning wheels on the overall aerodynamics of the car. In all, these features optimizing the aerodynamic qualities of the car give the BMW EfficientDynamics Concept car a very low drag factor (CX) of just 0.22.

Technological look as a strong impression of intelligent lightweight construction.
In both exterior and interior design, BMW EfficientDynamics Concept stands out clearly as a strong spearhead in technology. Many components of the vehicle are presented in full view expressing the "transparent" character of the car as a powerful visual feature of lightweight technology. The chassis and suspension of BMW EfficientDynamics Concept are made completely of aluminum; the roof and the outer skin on the doors are made almost completely of a special polycarbonate glass automatically darkening as a function of the light shining on the car.

Carrying a maximum payload of 981 lb, this unique 2+2-seater is fully suited for everyday traffic. Luggage capacity of 5.3 cu ft, in turn, allows the driver and passengers to conveniently take along two golf bags. And to meet additional loading requirements the backrests of the two rear seats may be tilted down individually to provide extra storage space.

Interior: innovative lightweight construction and unprecedented orientation to the driver.
Innovative layering technology provides an unprecedented symbiosis of function and stylish shapes intentionally reduced to a minimum, consistently implementing and visualizing the lightweight principle also inside the car.

LED lights at both the front and rear end of BMW EfficientDynamics Concept provide an innovative combination of the symbols typical of the brand and clear design language oriented towards trendsetting technology. The distinctive look of the dual round headlights characteristic of a BMW is emphasized in particular by the use of LED technology. The rear lights are integrated also in their function into the design of the entire rear section, forming part of the rear air deflector and thus merging completely into the rear contour.

The optical impression conveyed by BMW EfficientDynamics Concept also results in other areas from the symbiosis of the exterior and interior, eliminating the conventional barriers between the two. The lines within the interior, for example, continue on to the innovative design of the engine compartment lid, while in its shape the third brake light positioned higher up on the car follows the structure of the glass roof and tapers to the outside where the roofline moves down gently to the rear.

Overhead doors for convenient access to all seats.

The large glass surfaces extending far down on the body also provide a strong optical impression of the low seating position close to the road. And at the same time a stable sidebar ensures the body stiffness and crash safety naturally required on every vehicle. Flowing to the inside at its central point, this safety element also serves as an armrest. This interplay of the three layers also helping to minimize the weight of the car continues on the trim bar running along the door and extending out of the armrest, finally flowing into the outer door opener on its path from inside to outside.

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