How dos the exterior of the 850CSi differ cosmetically from that of other 8 Series?
Aside from its M-designed 17- or 18-inch wheels, the exterior of the 850CSi is distinguished by a unique front fascia that includes a deeper front airdam and air intake, more pronounced side sills and four round exhaust tips, two pairs on either side of a “diffuser” panel under the bumper. European-spec models also feature aerodynamic M rear-view mirrors, while U.S.-spec cars have unique door handles that are embossed with “BMW Motorsport” script. An “850CSi” badge appears on the trunk lid, but there are no M badges on the exterior of the car.