Quote:
Originally Posted by rca06Mcoupe
I also read somewhere M division had big hand in developing z4335is, in particular, chassis design and wind tunnel testing.
I can't find any quotes saying M division designed or helped design the engine for the Z4 335is but I believe they probably did, at a minimum, collaborate.
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I too remember something which i think came from Scott about them almost developing the 135i as an M in all but name too so i am sure this is a more special engine.