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Japanese cars Lexus Convertibles - ZCars

Video: Lexus IS 250C

October 8th 2008 00:15

The majority of convertibles, especially the hard-top variants, are show-stoppers in one or more ways and you'll often see people stopped dead in their tracks admiring the engineering behind these vehicles.

Despite sporting a rather awkwardly styled rear quarter, the three-piece aluminum roof on the new Lexus IS 250C is still expected to attract plenty of attention when in action, especially when the luxury car maker has laid claim to the mantle of the world's fastest folding hard-top roof. In just a mere 20 seconds, the coupe is transformed into a convertible to deliver exhilarating open-air driving with the safety and comfort of a hard-top roof when required.

Australian sales have yet to be confirmed but when it is, don't expect to see the IS 250C before the third-quarter of 2009. Fortunately, you won't have to wait that long to see the folding mechanism of the IS 250C in action with the release of this new promotional video clip.

The latest Lexus model will take on BMW's 3 Series convertible range which also happens to feature a folding hard top of its very own. Now the question that begs to be asked is will Mercedes-Benz introduce a new hard-top roof for the new generation CLK-class?

Read more about the Lexus IS 250C here.

[Video Source: PaulTan.org]

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Posted By: charles - Category: Japanese cars, Videos, Wallpapers, Lexus, Convertibles, Coupes

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Lexus IS 250C

October 6th 2008 00:15

Luxury Japanese car maker Lexus has reinvigorated their IS-range of vehicles with the launch of the IS 250C, a two-door, hard-top convertible version of the popular entry-level sedan.

Featuring a three-piece, lightweight aluminum roof that opens in a super-fast 20 seconds (no doubt lessons have been learned from the SC 430), the roof mechanism is compact enough to offer sufficient volume in the boot to accommodate a set of all-important golf clubs with the top down.

With enough body strengthening and new body panels for the IS 250C (only the bonnet, headlights, door handles and mirrors are shared with the sedan) to be considered as a separate model line in its own right, the pitfalls of having a hard-top roof is evident in the IS 250C with an odd assortment of angles and shut-lines that ruins the flow of the styling. Having said that, the IS 250C is a much more appealing proposition with the top down but it would still struggle to win any beauty contests against the likes of BMW's 3-series convertible.

Slated for an European launch in the northern summer of 2009, Australian sales have yet to be confirmed but our guess is the IS 250C is a case of when, and not if, for the local market.

The Official Lexus Press Release:

IS 250C – World Premiere

Making its world debut at the 2008 Paris Motor Show, the new IS 250C combines the sporting elegance of the IS sedan with superlative engineering ingenuity to create a unique fusion of top-down driving pleasure and uncompromised closed-top dynamic performance in the premium sedan segment. Its lightweight, aluminium folding roof structure boasts the fastest three-part roof opening time of just 20 seconds. Through the remarkably compact packaging of its roof mechanism, the IS 250C offers a large boot space, generous rear seat access and spacious rear passenger accommodation.

Sharing the IS 250's 153kW/208DIN hp, 2.5 litre ultra-smooth V6 powerplant and 6-speed automatic transmission, the new Lexus convertible has been styled to offer minimal wind turbulence when driving with the hard top stowed. The enhanced torsional stiffness of the IS 250C design promotes ride comfort appropriate to the marque and, in coupe configuration, reduced noise, vibration and harshness (NVH) characteristics on a par with those of the IS sedan.

With the hard top stowed, the IS 250C presents a seamless, elegant profile punctuated only by the integral roll-over hoops behind the rear seat headrests, reinforcing the full-length sweep of the rising beltline and the convertible’s broad, purposeful rear stance. No residual roof mechanism elements remain in view or project above the vehicle’s tapered waistline; the whole being entirely concealed beneath the broad, sweeping boot surface and adjacent, flush-fitting parcel shelf.

Constructed entirely in lightweight aluminium, the new IS 250C’s folding roof structure offers an unparalleled level of smooth, seamless and silent operation. Activated via a dashboard-mounted button, the ultra-quiet operating mechanism features a unique “roof brake” mechanism which slows the closing of the hard top as it approaches the windscreen head. This ensures that, unlike many mechanisms in which the weight of the roof structure causes an increase in operating speed just before the point of closure, the IS 250C’s hard top descends smoothly into place.

Interior design and comfort
The IS 250C shares the sedan’s high levels of interior luxury and practical innovation, with several bespoke technical revisions designed to ensure the effective operation of the vehicle’s on-board comfort and entertainment systems when in convertible configuration. On board, the instrument panel and surrounding components, as well as the steering wheel, are shared with the IS sedan range, but the driver’s instrument binnacle has been extensively revised to increase open-topped motoring visibility.

The climate control system has been specially configured for top-down motoring with the addition of a speed sensitive control which automatically increases air flow in roof-open mode, and further increases airflow according to vehicle speed.

The 12 speaker, Mark Levinson® Premium Surround Sound system features equaliser tuning to provide consistent audio quality whether the hard top is up or down, automatically adapting to the natural loss of bass when the roof is stowed.

Set 30mm further inboard than those of the IS sedan to optimise headroom and divided by a centre console with built-in cup holders, the two, full-sized rear seats benefit from a revised, more slender front seat profile to offer ample legroom.

Improved by a wide-aperture door 300mm longer than that of the IS sedan, rear seat access has been simplified through a one-touch walk-in button offering high-speed, automatic front seat fold-and-slide activation for the ultimate in rear passenger convenience.
The IS 250C’s rear overhang has been increased by 50mm over the sedan, which combines with the exceptionally compact packaging of the folding roof to generate a significant increase in luggage space. The new Lexus can accommodate a 9” golf bag with the hard top stowed and the luggage cover in place.

Aerodynamics and Wind Stream Management
Benefiting from a steeply raked windscreen, ultra-smooth cabin profile, aerodynamically efficient, “duck-tail” rear styling featuring “airkick” effect, rear tail lamp clusters, and a comprehensive array of aerodynamic under-body covers, the IS 250C has been designed to combine the lowest possible drag coefficient with minimal wind turbulence affecting the open cabin. Hard top in place, the IS 250C’s drag coefficient of just 0.29 compares extremely favourably with the sedan’s exceptional 0.27Cd rating.

Lexus design engineers have focused particular attention on reducing wind turbulence and generating the most comfortable airflow characteristics for occupants with the hard top lowered. The angle of the front windscreen allied to the windscreen head design are major contributors to the achievement.

Ride Comfort
The new IS 250C employs the proven double wishbone front and multi-link rear suspension format of the IS sedan range to offer a sporting, agile driving experience. Significant chassis revisions have been incorporated to promote the greater ride comfort appropriate to a convertible, and ensure a consistent dynamic performance in both coupe and convertible guise.

In conjunction with extensive temperature, vibration and shaking tests, all bodyshell and chassis revisions have also been implemented with the express aim of ensuring that, in coupe configuration, the IS 250C demonstrates almost identical Noise, Vibration and Harshness characteristics to those of the IS sedan.

The use of acoustic windscreen glass allied to painstakingly optimised roof, door and window panel seals awards the IS 250C class-leading low wind noise levels.

Safety
The IS 250C has been designed to achieve a 5-star frontal impact rating in Euro NCAP crash testing, offering world-class safety in either coupe or convertible configuration. Numerous body structure changes have been incorporated in the IS 250C to enhance collision strength, roll-over protection and torsional rigidity, minimising cowl shake and optimising chassis controllability.

In keeping with the IS sedan range, the new Lexus convertible benefits from the highest content of sophisticated active and passive safety technology in the segment, including Lexus’ Vehicle Dynamics Integrated Management (VDIM) incorporating open body-specific

Vehicle Stability Control (VSC) tuning for shorter stopping distances on split-friction road surfaces, a revised Pre-Crash Safety (PCS) system which supports the pre-crash seatbelt and pre-crash brake assist functions with pre-crash brake technology, and the Safety Restrain System (SRS) twin-chamber passenger airbag.

Further improving the new Lexus safety credentials in open-topped mode, the IS 250C is equipped with a new design of enlarged side airbags which provides head protection in the event of side impact. The convertible bodyshell has also been equipped with additional, energy absorbing side impact pads for both front and rear seat occupants.

[Source: Lexus]

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Posted By: charles - Category: Japanese cars, Wallpapers, Lexus, Convertibles

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