A bit more aggressive on the e9X M3s, here's a recent install on factory 18s:
Vehicle is EDC-equipped with 15mm/10mm spacers & H&R Springs:
H&R TRAK+ wheel spacers for BMW (DR Series) - 10mm
H&R TRAK+ wheel spacers for BMW (DR Series) - 15mm
Don't forget longer lugs also - we carry everything in stock.