When I was looking at OE BMW 15" options I found the style 31 to be the lightest 15x7. They came on E39, 15x7 ET20 and lots of the compact cup guys run them across the pond.
I got lucky and found a set of TRM C1s made for an E30 M3. They are 5x120 15x8 ET20 and I run them on track with 205/50-15 Maxxis RC1. Probably going to move to a 225/45-15 when I need new tires later this year.
I've seen some people run high offset Porsche 944 15" wheels with adapters as well.
Last edited by spidertri; 05-09-2018 at 08:10 AM.
Reason: more words
11 128i Space Gray slicktop
13 WK2 Deep Cherry
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