Rojak: For me the biggest difference was the throttle and road response. The E30 felt like it did anything I ordered it to, down to the tiniest flick of a toe, and I "felt" every corner as well. The M3 might be faster and torque-er, but it feels more tame on the road. Ppl say that the E30 is a real driver's car, and after experiencing it for myself, I totally agree with them. =D
Sorry to miss out the details on the rim, but unfortunately they are just replicas. Looks good on the E30 tho i must say.