This Sophisto Grey Metallic w/ BMW i Frozen Blue accent BMW i8 was seen at the 2018 Gumball 3000 Rally in Japan. It features a set of ADV510 Track Spec Advanced Series concave forged wheels, built specifically for this BMW i8. The wheels feature several design & engineering features, directed at producing a lightweight, engineered for track day usage set of wheels. The wheels adhere to all the special requirements of this hybrid vehicle in terms of fitment, weight, and diameter. The wheels are sized 22x9 in the front and 22x10.5 in the rear.