It's interesting how the OP asks what appears to be a simple question (that know one but himself can answer since it's VERY subjective), and the thread turns into a raging battle of how slow one of the top 1% of all production cars ever made is.
Get a life people!!
To the OP... I think if you adjust your driving style for the differant drivetrain of the M3 you'll be fine. You just need to be a little pickier about what gear you're in.
Last edited by MKE_M3; 05-30-2012 at 08:16 PM.