Audi will soon put on the market the all new Audi RSR.
Just a few facts: V10 engine, 420 HP, 4WD and a weight around 1.5 tons, slightly lighter than the current 911 Turbo.
The design is pretty spectacular for it's price tag, around 125000 EUR (which puts the RSR in the same price range as the Porsche 911 Turbo).
The engine is the same engine used in the Lamborghini Gallardo.