if you guys are talking about pure straight line performance, noflash was right. their both 0-60 in 4.8. but on the track, rs4 will take the m3 anyday. I know most of you have heard about top gear (the show) and if you look at their track times, the rs4 is like 0.02 seconds away from the lambo. ill try to find the exact lap times for the rs4 and lambo.
even if were only talking about the s4 vs the e46 m3. on the top gear track, s4 ran it in 1.30.9 and the m3 did it in 1.31.8.
yes the rs4 isint that fast 0-60, but once its on the track...its over