The "assembly line" scenes for BMC were actually filmed at the AMC (American Motors Corporation) plant located at Kenosha, Wisconsin. In several shots you can catch glimpses of a 1978 Gremlin, Pacer, and Concord being built and painted. The plant was destroyed by Chrysler in the early-'90s. Also, some shots of contemporary "BMC" automobiles are actually badly redecorated Fords; a Granada and LTD are among the unfortunate victims of a very hideous restyle.
Publicity for this picture stated that it was the first time in film history that a major American car company allowed filming to be conducted at their facilities. The organization was American Motors and they allowed filming to be done at both their Detroit Design Studio and Wisconsin Assembly Plant.
Three famous Newport, Rhode Island mansions were used for filming Loren Hardeman's home. They were The Elms, Rosecliff, and The Breakers. Also featured in the movie are glamorous estate houses in Palm Springs and Santa Barbara.