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Wow, those drifts look nice. The relatively long genesis for the M3 suggests to me that the engine is based on a successor to the N55. Otherwise, I think the New M3 could be available earlier. I have a feeling the change in the top end will be cylinder deactivation, but that is a wild guess based on the idea that just about every other fuel saving technology short of hybrid electric is already there. I also wonder if the DCT will have a real overdrive gear to improve highway efficiency. I realize that M3 buyers don't care much about fuel efficiency, but the M3 will be averaged in with other cars its size and these averages are getting increasingly harder to meet.
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