I hope Hot|Ice reads this (think that is who bought the c63 and was arguing how the c63 coupe was only 100 pounds heavier. Well here you have it-444 pounds heavier for the coupe!
Insane. So it really explains why with much less hp, that it can pretty much keep up even though still slower in a straight line. Power is not everything as you all know.
Great cars,though-truly would be fun to own both as they provide a totally different expereince.