Quote:
Originally Posted by Amaru
Well, for starters, the S54 motor in the e46 M3 has far more limited potential in terms of bolt-on mods.... it's a better package out of the box by far, but the 335 offers excellent bang-for-buck value. Dump $5k into a 335 and you'll destroy e46 M3's on the track.
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The N54 and N55 in the 335i / 135i is a phenomenal engine, but only in street use. When taken to the track, the sustained stress induced by track use has a much higher chance of causing stuff to break in the N54 and N55 than in the e46's S54.
I would advise against hardcore flogging of a 335i on the track. It doesn't mean you can't take the car out to enjoy it at the track. Just don't flog it, and don't beat the crap out of it trying to squeeze every last drop of performance it has. You don't want to head home on limp mode or on the back of a tow truck.