Audi->ke14 is preparing to add a new RS model to its line-up as shown by these images of the future RS6 Avant. The sports-focused mid-sized vehicle was caught testing at the Nurburgring race track in Germany, donning some heavy camouflage. This just means that the mule that was testing previously has been tossed out and the production version is now making its testing rounds.

As previously reported, the Audi RS6->ke1305 will be powered by the same 4.0 TFSI bi-turbo V8 as the S6->ke1207, the S8->ke1900, and even the new Bentley Continental GT V8. However, the final output is expected to be increased to the 500 HP area, so the RS6 should be a real monster.

The future Audi RS6 will also feature a wider track and more aggressive brakes, as well as a meaner overall look. The bad news is that Audi doesn't plan on offering it as a sedan just yet, so station wagon haters will have to give in or wait that much longer.

.