I haven't driven the new vette but have had plenty of GM vehicles and can say I'm glad I got a M3 now. Although the drivetrain is quite impressive in the C6. It never seems to take much time before a new GM vehicle starts falling apart and having problems. Plus I prefer the styling of the M3. Not only does it look like a fast aggressive car it also has a nice clean classy look for when you don't want to draw so much attention and just want a nice looking car. Where as the vette only looks fast and aggressive like it just belongs on the track. But that's just my opinion.
Unfortunately I'm still stuck with GM for work cause no one else seems to make a good full sized pickup.