In 1936, GM released the Opel Olympia, the first car in which the body and frame were built as one unit. Before then, most the body of most cars was built separately from the frame. The new production created a "tighter" and smoother ride. The Olympia was named afte rthe 1936 Olympics. The car had a 4-cylinder 24 horsepower engine and could travel up to 60 mph.
(Courtesy GM )