Originally Posted by Chemicals
how light can you get an e92 m3 coupe without significantly disturbing the interior? Like, basically replacing the two front seats, keeping the back ones, and making only body/parts modifications to reduce weight further?
Seats, wheels, brakes, exhaust and CF trunk can net you around 200lbs. These are the easy 200lbs, but not cheap ($12-15k easily).
Frankly, if you add $15k to the cost of an M3 you end up in 997.2 territory, which already has all the performance/weight from the factory. I'm just not sure it's worth it, unless you absolutely have to drive a BMW.
The beauty of the M3 is its balance between the performance and comfort attributes. No sense trying to push it too much in either direction, IMO.