On the E30 M3 the hot setup is a 15x8 Kosei K1 racing wheel. It weighs only 14 lbs each and is extremely strong as well (for those of you who have been following, yes it's finally in normal production ;) ). As for the tire I like to use the 225/50/15 either Kuhmo V700's or Bfg G force R1's, depending on the actual usage of the vehicle. If you have any other questions, I am a former E30 M3 owner and can certainly help you. Let me know direct at 800.428.8355 x395, thanks Aaron