That's true e30tOny, thanks to the M42 I haven't received a single speeding ticket. LOL
Kamil, I would wait until after the motor swap to install those 16" or 17" wheels, you will notice a reduction in overall performance. As for turbo M42 I would check out the write-ups on M42club.com, I have to admit I'm very tempted.
I wouldn't suggest a colour change or sanding down the corrosion protection unless you have extensive chips, dents, fading and scratches.
The major difference between my 318is and an e30 M3 is that the noises come from the engine and not the passengers