Personal luxury car is a North American car classification describing somewhat sporty, sophisticated mass-market coupés that emphasized comfort over performance. The North American manufacturers most often combined engineering, design, and marketing to develop upscale, distinctive "platform sharing" models that became highly profitable.Although luxury coupes had been produced in North America for several decades previously, the beginning of the "personal luxury car" genre is generally considered to have started in 1958, due to the success of the Ford Thunderbird (second generation) when it was redesigned from a two-seat car to a four-seat car. These changes shifted the Thunderbird's emphasis from sporting to comfort and luxury, and sales increased by 50 percent. The Thunderbird was sold for eleven generations up until the 2005 model year.
The longest-running nameplate of the personal luxury car was the 50-year production of the Cadillac Eldorado, which started in the 1953 model year, originally designating ultra-premium, low-volume versions of lower-priced Cadillac models, including the hand-built four-door 1957 Eldorado Brougham. According to Hemmings Motor News, Cadillac first entered the "personal luxury car" market in 1967, with a smaller high-volume model.Before the late 1970s, personal luxury cars were usually large, rear-wheel drive vehicles powered by large V8 engines. As a result of the downsizing trend in the American automotive industry during the late 1970s, many personal luxury cars have been produced as mid-size cars with six-cylinder engines and front-wheel drive. By the 21st century, the personal luxury market had largely disappeared as consumers migrated to other market segments.
