Audi brought their prototype RS6 Avant to the
Nurburgring in the wee hours of the morning in an attempt to test the new model with a few quick laps before all the usual spy photographers arrive. Luckily for us and unlucky for them, our insomnia-stricken spy photogs heard the RS6's roar in the distance and positioned themselves to snap a few stills for us. The Audi RS6 was dressed in full camouflage and should run on the S6 and S8's 4.0-liter TFSI twin-turbocharged V8.