You'll have to click through to see the pics for yourself. A new Audi RS8 undergoing some high-performance testing at the 'Ring burned to the ground before firefighters could douse the flames.

Quattro GmbH is currently building the Audi RS4 Avant, RS5 coupe and cabrio, RS6 Avant, RS7, RS Q3 and the TT RS coupe and roadster – not to mention the R8. And while it's showing no signs of ...