It was a dealer car with dealer plates. He saw my dealer plates and gave me a nice head node. My windows were all ready down so I was able to hear the engine. Holy Crap! It sounded really good. I have owned and sold quite a few AMG's and the C63 sounded more like the 2002 SL 55. We both turned at the same time and he got on the side of me and I was egging him on a little and he stood on it. Right at that time we we where traveling under a over pass and it sounded great. I could see the cars torque right away. Fast, Really fast. It is such a small car but looked pretty aggressive on the street. I have seen a few at the car shows but it presented itself much better turned on. Anyways, my guess is off the line it is pretty close but once we hit 50+ mph the V10 will giddy-up on it! I have to tell you I have owned every M3 made and I think I would rather have the C63 than the new M3. (on the street off-course, track would be a different story) The new M3 just doesn't do it for me at all. Quite disappointing. I had an allocation for one and I gave it away. I guess my point is that the new C63 is a pretty sweet little car!