2006 Chevrolet WTCC Ultra Concept
(from General Motors Press Release) Chevrolet WTCC Ultra: Exciting Driveable Race car Concept
• Muscular: Strikingly fresh design, outside and in
• Powerful: 190 hp common rail diesel
• Efficient: Modern lightweight materials
Paris. "It’s a wild thing": The Chevrolet WTCC Ultra has got what it takes to be the star of the Paris Motor Show – and not just because its rear spoiler shoots so brashly up towards the heavens. The bold and aggressive design of the racecar study takes the Chevrolet body language to the extreme. "We wanted to explore the concept of a Chev-rolet muscle car reinvented for Europe," says David Lyon, Executive Director GM Asia-Pacific Design. "A concept that celebrates Chevy’s racing heritage with a very forward looking design."
The ready-to-drive concept car set to premiere in Paris was developed by a GM team around the globe (for more details, see page 4). It is the vision of a new generation of touring car- a design icon that bends the present WTCC regulations. "In addition to the premiere of the Chevrolet WTCC Ultra, we are also celebrating our second victory in the World Touring Car Championship," says the boss of Chevrolet Europe, Wayne Brannon, referring to Rob Huff’s success in Brno in Czech Republic on September 3. "Our com-mitment to the WTCC is of enormous value for emotionalising the brand."
In line with Chevrolet's diesel offensive, the compact WTCC Ultra (length/width/height with spoiler: 4,324/1,906/1,569 mm, wheelbase: 2,650 mm) is equipped with a powerful 1,991 cm3 diesel unit generating 139 kW/190 hp. The basic version of the four-cylinder engine is the common rail unit with four-valve technology and variable turbine blade geometry currently powering the Chevrolet Captiva and due to go into the Epica from spring 2007. The increase in performance was achieved by raising the turbo boost pressure.
The WTCC Ultra has a sophisticated independent wheel suspension on McPherson struts on both axles. The lower wheel control at the front is taken care of by an A-frame arm, while at the back, two additional wishbones and one trailing arm link the wheels precisely to the chassis.
To keep the unladen weight as low as possible, the designers of the WTCC Ultra have made plenty of use of modern lightweight materials. The body parts are finished in "Stealth Blue", a further development of the familiar Chevrolet blue, and are made of a glass fibre and carbon fibre laminate. The flat underbody of the fully functioning touring concept car, which also graphically divides up the vehicle because of its dark colour, and the front and rear spoilers are made of a plain weave carbon fibre composite. The window frames and the air inlet grilles at the front are finished in semi gloss dark grey. They make an attractive contrast with the glossy silver-painted wheels and the polished alu-minium door handles, number plate and centrally positioned tailpipes.
Another aerodynamic feature apart from the flat underbody and the spoilers is a rear dif-fuser to create additional downforce.
© Source: original article on seriouswheels.com
