This guy went a little bit bigger on 19" wheels and I think it looks pretty good.
Post Your Aftermarket Wheel Set Up!
https://g20.bimmerpost.com/forums/sh....php?t=1686702
Page 3. Post by NoTanks52
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Sold: 2020 M340i, BM3, VRSF catted dp, MPE, Dinan springs