This Audi RS4 vs R8 video was shot for a German TV auto show called D Motor. Both, the Audi RS4 and the R8 are powered by an identical engine - the 4.2 liter V8 that develops 420 hp. However, the RS4 is 60 kg heavier than his brother and the engine placement is different. The Audi RS4 is front engine and the R8 is mid-engine.
To see the German test of both cars watch the Audi RS4 vs R8 video after the jump.