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Showing posts with label Lexus. Show all posts
Showing posts with label Lexus. Show all posts

Lexus IS250C

>> Saturday, March 27, 2010

Lexus IS250C, 2010



The new Lexus IS250C.
The new model combines the award-winning design of the IS sports saloon with outstanding open-top engineering ingenuity.
The IS250C displays Lexus quality and attention to detail in every aspect of its construction and is designed to exceed customer expectations with its fusion of top-down driving pleasure and uncompromised dynamic performance.
It also boasts the fastest opening time for a three-part roof design, with its lightweight aluminium structure folding away in just 20 seconds.

The Exterior Design
The Lexus IS250C builds on the elegant proportions, sweeping, sculptural lines and contrasting convex and concave surfacing of the IS saloon range to combine the muscular appeal of a sports coupe with the stylish lines of a convertible.
Only the bonnet, headlamps, door handles and mirrors are shared with the IS saloon, all other body panels have been redesigned to ensure they harmonise perfectly with the three-part folding roof.

The Interior Design and Comfort
The Lexus IS250C offers the same high levels of luxury and practical innovation as the IS saloon, with a number of bespoke technical revisions designed to ensure the on-board comfort and entertainment systems operate effectively when the roof is down.
The instrument panel, surrounding elements and the steering wheel are the same as on the IS saloon, but the instrument binnacle in front of the driver has been extensively revised to ensure good visibility is maintained during top-down driving.
The climate control system has been configured for top-down motoring, with the addition of speed sensitive control, which automatically increases air flow when the roof is lowered and further increases it in line with vehicle speed.

The Ride Comfort
The Lexus IS250C uses the proven front double wishbone and multink rear suspension format from the IS saloon range to give sporting, agile performance. Significant chassis revisions promote greater ride comfort suitable for a convertible and ensure consistent dynamic performance in both coupe and convertible guise.
Extensive temperature, vibration and shaking tests were carried out to ensure the changes to the bodyshell and chassis maintain NVH characteristics almost identical to those of the IS saloon. Class-leading low wind noise levels are achieved with help from acoustic glass for the windscreen and painstaking design of the roof, door and window panel seals.

The Safety
The Lexus IS250C has been designed to achieve a five-star frontal impact rating in Euro NCAP crash testing, with world-class safety performance in both coupe and convertible configuration. Numerous changes in the body structure enhance collision strength, roll-over protection and torsional rigidity, minimising cowl shake and optimising chassis control.

For added protection when driving with the roof down, the Lexus IS250C is equipped with new-design larger side airbags that provide head protection in the event of a side impact. The bodyshell also features additional energy-absorbing side impact pads for both front and rear seat occupants.

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Lexus LF-A Roadster Concept

>> Saturday, March 13, 2010

Lexus LF-A Roadster Concept


The engineers and designers at Lexus continue to use their groundbreaking LF-A premium sports car concept as a medium for expressing their ideas about what a high-performance sporting vehicle not only can be, but should be. In this latest expression of the LF-A, they have removed the car's top to create a high-performance roadster.

The LF-A Roadster is based on the sturdy yet lightweight carbon-fiber and aluminum body used for the LF-A coupe, which helps maintain the structure's strength and rigidity even without a top.

Like its coupe counterpart, the LF-A Roadster is powered by a high-revving V10 engine that approaches 5.0 liters in displacement. The V10, capable of more than 500 horsepower and test-track speeds greater than 200 mph, is mounted in front of the passenger compartment but behind the front-axle centerline in what the LF-A's engineers refer to as a "front-mid" configuration.
The engine is connected via a torque tube and propeller shaft to a transaxle that is controlled by paddle shifters. The torque tube is a structural member that adds rigidity to the drivetrain and chassis while also reducing vibration.

Styling is rooted in the Lexus L-Finesse design philosophy, conferring the LF-A Roadster's front end with a compact, low-profile, aerodynamic shape. Like its coupe counterpart, the LF-A Roadster stands just 48 inches tall, but the Roadster configuration adds a speed adaptive rear wing.

These grilles vent the heated air from the car's two rear-mounted radiators into the LF-A Roadster's aerodynamic wake. The radiators are fed cool air by two large intake ducts mounted just above the rear wheel wells. This aft radiator positioning not only allowed the designers to keep the car's front profile low and tight but also aided the LF-A's chassis engineers in their search for optimal weight distribution.

Helping to provide balance and scale to the design, which features an overall length of 175.6 inches and a wheelbase of 102.6 inches, are high-performance tires on turbine-styled alloy wheels. The front tires are 265/35R20s, while the rears are 305/30R20s. Like the LF-A coupe, the brakes consist of 14.2-inch cross-drilled, vented discs up front, and 13.6-inch cross-drilled, vented discs at the rear. The front brake calipers are six-piston units and the rear calipers use four pistons each.

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Lexus LS 600h L

>> Monday, January 11, 2010

Lexus LS 600h L




The Lexus LS 600h L luxury sedan was the first vehicle to bring fuel-efficient gasoline-electric hybrid technology to the prestige luxury segment.
The Lexus LS 600h L provides the brand's highest level of performance and technology, and the truest expression of luxury.

Engine
The Lexus LS 600h L is powered by the ultra-quiet Lexus Hybrid Drive system, which was the world's first to combine a V8 gasoline engine with an all-wheel-drive (AWD) hybrid drivetrain. The system combines a 5.0-liter V8 gasoline engine with two powerful electric motors and a large-capacity battery pack.

The hybrid powertrain generates a peak combined output rating of 438 horsepower and can effortlessly accelerate the Lexus LS 600h L from zero-to-60 mph in just 5.5 seconds.
Mid-range acceleration is even more impressive. The electric motor system is capable of delivering maximum torque on demand and is most beneficial during passing maneuvers.
The Lexus LS 600h L can accelerate from 50-70 mph in a rapid 3.5 seconds.
Its combined EPA fuel economy rating of 21 mpg is equal to or better than the combined fuel-economy ratings of some V6 all-wheel-drive mid-sized luxury sedans.


The innovative V8 features an electric motor-driven Variable Valve Timing with intelligence and Electrically controlled intake cam (VVT-iE). This combination of VVT-i with electric-motor driven intake and an oil controlled VVT-I exhaust system achieves superior engine-startup operation and high-output performance.
A specially developed Hydrocarbon Adsorber and Catalyst (HCAC) system is linked to the two-way exhaust to help prevent hydrocarbons contained in the exhaust from being released into the atmosphere during cold start up when the catalysts are not up to temperature.

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