Given that I own an M3, and came from a 325is, I thought I would chime in. I too was relatively unimpressed by the power of the M3 when I first test drove one. It does feel slow when you are moving slow because the torque is terrible below 4k due to the AFM. Once you get that opened up, its a different ballgame. Its good that you got up to 100 as that is basically the point at which the M3 and the 325is become different beasts. Whereas I would die in 4th on the backstraight at WGI at about 115 MPH, the M3 pulls all they way up to 7400 at somewhere around 122 or so (and this was with shitty leakdown numbers), and that is when it starts to feel fast, over 100 MPH. You cant really quantify that on the streets. All in all, if you arent tracking the car, I wouldnt go for the M3, unless you want to drop a couple grand into the engine to make it feel better down low.
FWIW, top JS cars and top KP cars run nearly identical at WGI (1.02.xx for the M3 and 1.03.xx for the 325i).
Will
FWIW, top JS cars and top KP cars run nearly identical at WGI (1.02.xx for the M3 and 1.03.xx for the 325i).
Will
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