BONOSS Forged AL7075-T6 4 Lug to 5 Lug Wheel Adapters 4×100 to 5×120 for BMW 3 Series E21 318i / 320i 1975-1983, E30 318i/ 320i/ 323i 1982-1994 - BONOSS
42 draft design 4x100 -> 5x120 adapters - R3VLimited Forums
2X WHEEL SPACERS ADAPTERS 4x100 to 5x120. (CB 57.1) BMW E30 to NEWEST BMW (72.6) | eBay
E30 5 lug Complete Adapter Kit ( Front and Rear ) - SRS concept
Amazon.com: Autobahn88 Wheel Adapter to Convert BMW (5x120, M12x1.5) Hubs to fit 5-Lug JDM (Japanese) Wheels (5x4.5"/114.3mm) (compatible with Early Generation 3/5 Series) - Pack of 2 : Automotive
Turbo BMW E30 Build: Part 12 | Adapters & Mounting Proper Wheels - YouTube