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      07-06-2007, 10:12 AM   #23

Drives: e92 335i
Join Date: Nov 2006
Location: Helsinki

iTrader: (0)

Originally Posted by david06M3 View Post
Aerodynamic drag coefficient:
e46 M3 .33
e92 335 .30
Yes, I know those figures. I did not find frontal area figure for e46 M3, but assuming it is the same as for e92 335i, the difference in drag (drag coefficient x frontal area) would be around ten percent. To be able to have the same top speed (unlimited) the ten percentage more drag needs to be compensated by ten percentage more whp at the top speed revs. The acceleration close to top speed is mainly fighting agains the drag and ten percent more drag, would require almost ten percent more wheel power to have the same acceleration.