Quote:
Originally Posted by Levi
It won't be a V6 on the M3 F32, but can be on the next one, if the world hasn't yet come to an end. A V6 should be at 60° but the M5's V8 is at 90°....
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Yup. There's nothing "out of balance" on a V6 if it's got 60 degree banks. Even if it had 90 degree banks (which would be the obvious move if BMW decided to build one, because of existing tooling), you could either add the Mitsubishi balance shafts (patents have probably run out), or split the crank throws a la GM to get a perfect 120 degrees between power strokes.
Advantages of the V6 architecture are a shorter, more compact engine and a stiffer crank for any given design.