The last evolutionary stage of the 928 model featured flared rear wings, a red light panel at the rear, a rear wing painted in exterior colour, exterior mirrors in the Cup design plus 17" Cup rims as standard. The 5.4-litre engine of the GTS generated 350 hp. The 928 GTS came for sale in late 1991 as a 1992 model in Europe and in spring of 1992 as an early 1993 model in North America. Changed bodywork, larger front brakes and a new, more powerful 5.4 L engine were the big changes.