These spy photos of the Audi RS 5 reveal the car on its way into the Nürburgring. The RS 5 is to be powered by a turbocharged engine with over 430hp.

After a short quiet period the Audi RS 5 has returned to the Nürburgring for more high-performance testing. These spy pictures reveal a very purposeful sports coupe with lots to show off. The small rear spoiler is integrated into the boot lid. The wide fenders and two massive oval tailpipes look just like those in the 426kW (579hp) RS 6. Big air intakes at the front signal the need of extra air. Our spies report a phenomenal sound coming from the RS 5.

General consensus is that the RS 5 will be powered by the 4.2-litre V8 in what may be its swansong thanks to fast-approaching emissions laws. It will be twin-turbocharged for extra power which should push it up to between 316kW (430hp) and 331kW (450hp). The coupe will have quattro AWD with either 6-speed manual or 7-speed Audi R Tronic.

The RS 5 was scheduled to go on sale in July 2010 but with the credit crunch seemingly taking more industry victims, Audi has been forced to postpone the market launches of a few new models. This could very well be one of them.