i saw a video where both cars it says is 0-60 in 4.8 but the m3 kills the rs4 and i thought the older '06 m3 is 4.8 shouldn't new v8 m3 be faster, well here is the video i saw
http://carversation.com/2007/12/18/audi-rs4-vs-bmw-m3-e92/