TAG Motorsports BMW M4

TAG GTRS4 HRE 15 750x500

TAG Motorsports Vorsteiner GTRS4 Widebody Project Car

California-based tuning shop TAG Motorsports reveals a new BMW M4 project. Dubbed “Black Betty, the M4 Coupe features a widebody kit developed by Vorsteiner and an extensive mods list. The company says that Black Betty…