You're correct. The 335i only comes with an electronic differential (traction/stability control) which applies braking power (not torque xfer) upon slip. So on the track, the E46 M3 w/ LSD and M suspension out handles the 335i imo. However, if you're mod friendly, the E90/E92 chassis is stiffer (gradual improvement of each generation), and the potential of the twin turbo is huge. E.g. Depending on the tune, $1500 (as low as ~$500) will yield an easy ~60HP ~80LB-FT of improvement (we're talking 0-60 in ~4.3s). Add some coilovers, and you'll be trying to chase (not beat) the current generation M3, instead of following behind last generation's.
Lastly the OP wants a 4 seater, and the high torque (in the low RPM range) of a twin turbo makes it a great daily driver. You won't have to rev it up to screaming proportions on the street like you do in an M car.
Quote:
Originally Posted by Accumulator  Do those come with limited-slip diffs? I'm not Bimmer expert, but IIRC a lot of them have stability/traction systems instead of a real LSD. |