What are the factory wheel and tire sizes for the E28 M535i?
The E28 M535i is equipped exclusively with unique metric-sized M-Technic wheels measuring 165mm x 390mm (about 6.5 x 15.3-inches). These are mated to 220/55VR390 Michelin TRX tires. Note: These wheels have black center caps on early European-spec examples and all South African-spec cars, while later European-spec models feature silver center caps.