There have been countless conflicting reports about what will power the next generation Audi RS4 and the forthcoming RS5. Fourtitude had heard the rumors and decided to go straight to its sources for clarification. While the four-ringed obessesives weren't able to divulge the identity of their insiders (neither did CAR, which published of one the first stories about future RS powertrains), Fourtitude may have put to rest the rumblings that the next RS4 would ditch it's V8 in favor of a supercharged six.

According to Fourtitude, the 4.2-liter FSI V8 will soldier on in the RS4, and will also find a home in the RS5, which is currently undergoing testing both in Germany and the U.S. While a boost in output wasn't divulged, engineers will supposedly keep displacement the same, while decreasing frictional losses and possibly incorporating a new version of Audi's Valvelift system. If all goes according to plan, expect at least 450 hp from the direct-injected 4.2 and don't be surprised to find the tweaked V8 in the revised R8 around the same time.

Check out Fourtitude for the full report.

[Source: Fourtitude via AutoFiends]