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Old 04-29-2012, 08:09 AM
Vladi Vladi is offline
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Location: Switzerland
Join Date: Jan 2012
Posts: 596
Mein Auto: Z4 M (2007)
Originally Posted by JohnnB View Post
By the way, I found this somewhere when I was looking at cars if you are interested. I think it is M vs Si. Am I right?
It seems to me more like the torque (lower, flatter curve) and power of an Z3 M-engine vs. engine speed. For comparison of engine performance (the data base is really huge, these guys have done excellent job!) go to

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