1953 Cadillac Le Mans
The 1953 Le Mans concept car was one of the stars of Motorama, General Motors' traveling show of dream cars. Compared to a standard convertible, the Le Mans was nearly eight inches (20 cm) lower and its fiberglass body and 115-inch (292 cm) wheelbase made it 400 pounds (182 kg) lighter. The sporty styling closely resembled the 1954 Eldorado limited production convertible. Other Le Mans styling elements showed up on production Cadillacs, including the tail fin treatment and the rear bumpers, which were vertical strips of steel that appeared to be part of the body.