The German automaker Audi has just revealed details about an aluminum prototype lightweight A5 Coupe that uses the same space frame architecture that is used in the Audi R8 super car and TT sports coupe. Audi’s goal is to improve the overall performance of the midsize coupe by reducing its curb weight, by 242 lbs to be exact. When Audi’s engineers reduce the mass of the A5 coupe, they allow the engine to to breathe easier, the brakes to work less and the suspension to be tuned more precisely; making the four ringed luxury car a better all around performance machine.
The prototype Audi A5 is based on the steel bodied production car, replacing the bulkier design with the bespoke aluminum Audi Space Frame that reduces the weight of the prototype from 3,130 lbs to 2,888 lbs. While it’s currently powered by a 2.0 Liter TFSI four cylinder that makes 211 HP, in the interest of weight and economy, the lightweight chassis would make a great candidate for the foundation of a very nice future super car from the 100 year old four ringed automaker.
With all the current talk of Audi RS5s in America in the near future, it looks like this prototype is a test mule for a 450 HP V8 powered 2011 RS5 . Not only would the lightweight construction make the future RS5 an even better handling machine, but hopefully Audi’s power train engineers have sorted out the new A5’s transaxle layout so that the engine can sit a bit further back in the body. Just imagining an aluminum Audi RS5 with its blistered fenders and gills in the front bumper only hint subtly at the beast that would lie beneath. Another interesting fact about an aluminum bodied FSI V8 sports car would have over twice the horsepower, so an aluminum B segment RennSport would have twice asa much potential to push around all that weight.
Press release after the jump.