Well look here
http://www.motortrend.com/features/p..._8_bmw_m3.html
BMW M3
BEST LAP (MIN:SEC): 1:42.964
AVG. LATERAL ACCELERATION: 0.593 G
SUBJECTIVE RANKING: 2ND
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Pobst's first three words after his M3 track laps: "What a ride!" And then he got exuberant. "Makes you a believer in rear drive. Refined, but it rocks, too. Given the car's power and the fact that it's riding on street tires, the traction is excellent. Turn 4 is a fast, top of third gear corner, and while exiting at over 100 mph, I could push the M3 into a small drift. Sweetheart. Overall balance is really good-I don't remember much understeer at all. Also, the M3's steering feel is one of the best here. You've got that big fat wheel rim in your hands. Communicative and quick steering, with great satisfaction. There's body roll but not a sense of it. The damping keeps everything under control without harshness. Greater refinement than in the RX-8; you can feel there's more money in the pot." Pobst experienced a few hiccups with the DSG transmission ("shifts were harsh, and a few times when I tried to downshift it stayed in the higher gear"), but he had nothing but kudos for the chassis. "Not ready to say it's better than the R8, but what a ride!"
SUM UP: The lofty 3 Series chassis raised to even loftier heights.