Audi has announced that it will be showcasing an ultra-lightweight concept of the current-generation Audi TT at the 2013 Wörthersee Festival.
Based on the TT S quattro, the Audi TT ultra quattro concept is powered by a 2.0-litre, turbocharged 4-cylinder TFSI engine that produces 228kW and 400Nm. With a kerb weight that is 300kg lighter, thanks to a diet of carbon fibre reinforced plastic and magnesium, the concept storms from 0-100km/h in 4.3 seconds (1.3 seconds quicker than the TT S quattro) and hits a top end of 280km/h.
Compared to the standard model, the concept’s body structure is 43kg lighter, and uses carbon fibre reinforced plastic for the rear end, B-pillars, roof and centre tunnel. Magnesium was used for the floor and as hinge reinforcement. This means the coupe tips the scales at just 1,111kg.
Elsewhere, the TT ultra concept sports a larger rear spoiler manufactured from visible carbon, with a wing base that is made as a supporting component from milled aluminium.
Other weight saving measures include rear view cameras instead of mirrors, front carbon ceramic discs with fixed aluminium calipers, titanium exhaust and alloy wheels that are 20kg lighter.
Inside, the concept has pinched a pair of lightweight bucket seats from the R8 GT. They weigh 22kg lighter, thanks to their fibreglass-reinforced plastic chassis. While the focus was on reducing weight, Audi has kept luxuries such as electric windows, air conditioning and the electromechanical parking brake.
Although the concept won’t be hitting production anytime soon, its lightweight construction methods and materials will eventually find their way to series production models.