Audi S4 Avant Spy shots?

Some guys from Audiworld publish some pictures taken in Germany of what it looks is the Avant version of the Audi S4. The exterior is not the S4, but the brakes and the back kind of say it is.

According to some inside information from someone on Audi, the new S4 model will be powered by a 3.0 liter TSFI engine twin turbo, generation 330 hp. The time needed to make from 0-60 mph will be better that the 5.4 seconds from the actual model, dropping to a clean 5 seconds.