We've snapped Audi's RS6 around the Nürburgring, basking in all its twin-turbo V10 glory...
The Ingolstadt-based crew is readying its RS6, which will go head-to-head with Mercedes' E63 AMG and the BMW M5.
RS6's power will be sourced from a more potent version of the V10 unit seen in the S6 recently launched here, with twin turbochargers producing upwards of 390 kW.
Seen here undergoing final tests at the Nürburgring, the RS6 will also become available as an Avant version.
New RS6 debuts at the Frankfurt Motor Show in September.