Race and rally cars are just plain cool ... Design-wise, this special edition Audi has a redesigned front fascia, lower splitter, side sills, and rear diffuser, as well as unique carbon-fiber ...

Audi has opted to reveal the new A6 as a ... drivers can pick from seven different "digital light signatures" for the front and rear of the car. Inside, the new A6 Avant resembles the A5 revealed ...

Blame U.S. regulators for the chunky side mirrors ... adaptive dampers. Audi says the front and rear tires will be sized differently, wider in the rear, with the demo S6 cars wearing Michelin ...