We've seen the 2010 Audi RS5 running around in camouflage ahead of a Frankfurt unveiling, but the next-gen Audi RS4's been conspicuously absent in development. For good reason. It's probably not coming.

The 2010 Audi RS5 isn't leaving much to the imagination in these shots from the Nürburgring, and the finish makes it more noticeable. About the only thing we can't see is the 450 HP, 4.2-liter V8. [WCF]