Quote:
Originally Posted by erhanh
Well, again mazda 3 speed is a little hatchback with much less power. Evora is also a small car. Same goes for Carrera S. In fact, you see what happens when they put a little bigger engine and silhuette of rear seats.. Compared to Cayman S weight goes up ~150lbs. Now think of a bigger engine, and proper rear seats... Sure it doesn't justify 3700lbs, but still we can't compare M3 to Cayman.
WRX STI is again smaller car. But yes, all these examples suggest that BMW should be able to make M3 100-150lbs lighter.
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the point of listing those cars wasn't to show power/performance output, but to show that keeping the weight down in a comparably setup car is very possible with today's standards/regulations and there is no reason bmw can't do it too.
for what it's worth, the differences in engine weights might make up for a 50-75lbs difference at most when compared to the compact, all aluminum v8 in the M3.