On the eve of the Birmingham International Motor Show 1988, Jaguar unveiled a stunning prototype sports car, codenamed XJ220. Its body style was boldly contemporary and distinctively Jaguar. The flowing lines were clearly reminiscent of the great Jaguar sports car designs of the past. The body consisted of a unitary frame, constructed in bonded aluminum to achieve high strength and lower weight. A steel roll cage was incorporated within the tub. The outer body panels were also made of aluminum.