They really need to put a detuned S55 instead of a N55. the N55 blows after 360. I would worrie about reliability. Even tunners are are replacing the cranks rods and pistons on the M235i just to get 400 +. If Bmw puts the N55 into the M2 it will be the worst m car ever. The m2 also needs a serious diet, it can't weigh as much as the m235.
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