Audi is planning on going head to head with the Mercedes E63 AMG and the BMW M5 with the new RS6. Dubspeed Driven has posted spy photos of the new car being tested in Germany.
The car features larger air intakes and wider fenders. The big news is that there are rumors that the car could be powered by a blown V8 producing over 600hp. Awesome!!!
The car will be unveiled at the Frankfurt Auto Show in September.