The New Lexus is250C

18 Апр 2015 | Author: | No comments yet »

The New Lexus is250C

GENEVA, 6 20009 — The new Lexus IS which will go on sale summer, combines the sharp of the IS saloon range with engineering ingenuity. The result is driving pleasure with dynamic performance.

True to legendary quality and attention the new IS 250C has been engineered to excellent aerodynamics, torsional NVH levels and safety performance in coupe and convertible configurations.

The roof structure can be opened or in just 20 seconds, the fastest for any three-part folding roof on the market. And thanks to the compact of the folding mechanism, it takes up space in the boot, giving the car load space, generous seat access and spacious passenger accommodation.

The IS 250C its 204bhp (208 DIN hp) 2.5-litre V6 and six-speed automatic transmission the IS 250 saloon. It is styled to minimise turbulence when driving the roof stowed, while revisions to the body structure and provide a high level of rigidity. This ensures comfort and, when the car is in guise, class-leading NVH performance. safety is concerned, Lexus has and equipped the car to achieve a top five-star in independent Euro NCAP testing.

The IS 250C is the third in the IS Range, joining the petrol and IS saloons and the ultra-high performance

Exterior Design

The IS 250C on the L-finesse design characteristics of the IS with elegant proportions, lines and contrasting convex and surfacing. In spite of its close to the saloon, it only shares a of common body elements: headlamps, door handles and mirrors. All other body have been redesigned to with the convertible’s folding

The front overhang has been by 15mm to improve aerodynamic when driving with the top There is also a new fog lamp integrated in the deep front air In profile the IS 250C is characterised by coachwork below a pronounced, beltline that kicks up the rear. The steeply raked flows seamlessly in the aerodynamic arc of the while the crisp C-pillar is into the folding roof

In coupe guise, the cabin towards the rear, giving a transition from the roofline the C-pillar to the luggage compartment.

At the there are new combination light with distinctive linear LED and a high-mounted LED stop light into the upper lip of the boot

With the hard top stowed the IS elegant profile is punctuated by the roll-over hoops behind the headrests. None of the roof elements remain in view or above the car’s waistline, the sweep of the beltline; the entire system is concealed beneath the surface and the flush-fitting rear shelf.

Interior Design and

The IS 250C shares the saloon’s levels of interior luxury and innovation, with a number of technical revisions to ensure the comfort and entertainment systems effectively when driving in mode.

The low profile front seats are heated and ventilated and a new arched frame with an seatbelt guide. Extra for top-down driving is provided by heating pads at shoulder increased heater capacity and ventilation airflow.

The two full-size seats are set 30mm further than those of the IS saloon to headroom and are separated by a centre with integrated cupholders. legroom is provided thanks to the slender profile of the front and a class-leading 542mm between the H-point to the front seatback.

to the rear seats is made by an increase of 300mm in the length of the doors, compared to the saloon. The seats have a one-touch button which automatically and slides the seat forwards.

Generous luggage space has achieved by lengthening the rear by 50mm and exceptionally compact of the folding roof structure. the hard top in place capacity is 583 with the roof down it is 235 The IS 250C is the only car in its class to be to accommodate a nine-inch golf bag the hard top stowed and the luggage in place.

The instrument panel and interior components are the same as on the IS However, the instrument binnacle has extensively revised to ensure in open-top driving. The dial has been changed, LED contrast and the transmissivity of the glass reduced 30 to 20 per cent. The shape of the needles has changed and the dials themselves metal-tone bezels, and the central screen adds a hard-top status indicator. The scrupulous to detail extends to the rear mirror, which has a shorter, mount to minimise shake.

The control system has been for top-down motoring with the of a speed sensitive control automatically increases air flow in mode, further increasing the according to vehicle speed.

The LCD screen controls for the audio and systems have been with a redesigned set-up and extra tabs for the audio Both the standard eight-speaker premium sound system and the 365W Mark Levinson System gain equaliser to provide consistent audio whether the roof is up or down, adapting to the loss of bass the roof is stowed.

Both provide USB and audio jack connectivity for full control of music players such as Bluetooth mobile phone is also provided, with an streaming function. Using the disk drive (HDD) in the Navigation system, the audio includes a sound library which uses Compact Data Base technology to music files up to a 10GB

The new Lexus Navigation System has a HDD capacity, making it one of the fastest and accurate systems on the market. It the whole of Europe and recognises the information infrastructure of each The voice recognition function has upgraded, with four languages. The new menu can be operated in 14 including Cyrillic characters.

Three-part Folding Roof

The IS folding roof structure is entirely of lightweight aluminium and has the opening and closing time of any roof at 20 seconds.

Developed the benefit of the quality and attention to Lexus gained with its SC the folding hard top uses 15 and 35 sensors to achieve an unparalleled of smooth, seamless and silent

The entire headlining is trimmed in for quality and acoustic comfort. to detail on the seals also acoustic performance and ensures the is watertight against rain, car and even high-pressure cleaning

The ultra-quiet operating mechanism is by a button on the dashboard. It has a unique brake” component, which the closing action as the hard top the top edge of the windscreen. Unlike systems where the weight of the causes the closing speed to just before the point of the IS 250C’s hard top descends into place.

Because the operation extends the upper lip 250mm beyond the rear the system incorporates a clearance safety system, integrated in the bumper. If the system detects any between 350 and 450mm from the bumper, it will remain but will alert the driver a proximity warning. If an obstacle is within 350mm, the system becomes inoperable, and a warning is to the driver. All driver warnings the clearance sonar and the operational of the hard-top appear on the multi-display in the instrument binnacle.

Aerodynamics and Stream Management

The IS 250C has designed to combine the lowest drag coefficient with wind turbulence affecting the cabin. Thanks to the steeply windscreen, ultra-smooth cabin and aerodynamically efficient duck-tail styling with an ‘airkick’ in the rear lamp clusters, the has a drag coefficient of 0.29, compares favourably with the Cd rating for the IS saloon.

Lexus engineers focused attention on reducing wind and generating the most comfortable characteristics for occupants when the is lowered. The angle of the windscreen and the detailed design of its top edge a major contribution to the exceptionally low

turbulence those on board around the face, shoulders and even without the optional seat wind deflector in

A comprehensive array of underbody combined with new under-bracing to maximum torsional rigidity, is to the IS 250C’s aerodynamic performance. The include a front spoiler, an undercover with aerodynamic to promote a Venturi effect, a undercover, front and rear spats, full floor and tank covers, a rear cover and a rear floor with vertical fin and airfoil.


The effect at the front of the car, the middle section and the rear effect ensure a smooth and airflow beneath the car, lift and aerodynamic drag, improving high speed stability.

High Rigidity, Strength Bodyshell

The IS 250C numerous structural changes to collision strength, roll-over and torsional rigidity, minimising shake and improving chassis

Torsional rigidity is increased extensive underfloor bracing, front and rear V-shaped box braces, a front underfloor brace and a rear suspension

Front, upper and floor crossmembers have been and gussets joining the upper of the B-pillar to the upper rear contain body deformation in the of a side impact. There is a sub-latch mounted on the trailing of the door impact beam, transmits side impact to the lower B-pillar.

The A-pillar is made from tensile sheet steel. The part of the A-pillar has a combined plate and boot plate and the lower section of the B-pillar has a added to suppress any surface due to the height difference between the surface of the rocker panel and the rear floor crossmember. The panel itself has a larger 55mm taller and 29mm than that of the saloon, better torsional and flexural and collision strength.

Ride and

The IS 250C uses the proven double wishbone and rear suspension design of the IS saloon, sporting, agile driving. significant chassis revisions been made to give ride comfort appropriate for a and ensure consistent dynamic in both coupe and convertible

To achieve the best ride the front suspension coil and dampers have been tuned, the torsional stiffness of the bushing has been reduced, and the of the front anti-roll bar has been The Electronic Power Steering from a bespoke gear for maximum vehicle controllability and

Revisions to the rear suspension tuning of the springs and dampers for ride comfort, high rubber mounts for reduced and reductions in the torsional rigidity of the This further improves comfort through smooth movement with minimal change. The rear toe-control arm has redesigned, a performance ring has added to the suspension tower, and the support has been lowered by to increase rigidity, increase space in the boot and improve yaw response.

Noise, Vibration and

The chassis and bodyshell revisions, with extensive temperature, and shaking tests, have implemented to ensure that in configuration the IS 250C demonstrates NVH characteristics.

Comprehensive underfloor and the use of high tensile strength steel cross-bracing promote body structure rigidity to body and cowl shake. of the front and rear suspension and to the mountings reduce vibration at and minimise both noise and vibration from the road And the effective deployment of sound in particular in the rear partition, minimises booming, road and noise.

Acoustic windscreen glass and roof, door and window seals give the IS 250C low wind noise levels.

The IS 250C has been designed to a maximum five-star rating in Euro and US NCAP crash offering world-class safety in coupe and convertible configuration.

the example of the IS saloon range, the IS benefits from the highest of active and passive safety in the segment, including Lexus’s Dynamics Integrated Management This incorporates Vehicle Control (VSC) specifically for an open-body car and to ensure shorter distances on split-friction road a revised Pre-Crash Safety system; and the world’s first passenger front airbag.

In driving safety performance is improved with a new, design side airbag provides head protection in the of a side impact. The bodyshell has been equipped with energy absorbing side pads for front and rear occupants.



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