Yeah. What are we using as a basis of comparison? Price? straight line performance?
Straight line is tough. The Camaro SS, and M3 are probably going to trap around the same. But 0-60 I've seen car magazines saying the M3 will do 0-60 in 4.6 and others have said it does 0-60 in like 4.3.
Price? Advantage Camaro SS for sure...
On a track though. I'd say advantage M3.
Overall conclusion.... Just buy yourself a base Corvette, spend less money and just whoop the M3 silly...