Check out the January 2010 Road and Track.
Its actually a Drift Test but they tested 7 current cars and said "The 370Z NEARLY came away as the overall winner of this test. They gave it a perfect score under Steering, Initiation, Balance and Overall Durability.
2nd place was the Vette and first was the M3. Bear in mind the price as tested for the Vette was $70K, M3 was $66K so were 26-30K less. That 26-30K would buy some nice mods!
I have to agree the M3 is a great car. Had an 02 with SMG, really liked that car, felt like a rocket yet it was only 333HP. Looks a little feminine in stock form but a great car none the less.
Suppose its time I learn how to drift