A personal luxury car is an American car classification describing a highly styled, luxury vehicle with an emphasis on image over practicality. Accenting the comfort and satisfaction of its owner and driver above all else, the personal luxury car sometimes sacrifices passenger capacity, cargo room, and fuel economy in favor of style and perceived cachet, as well as offering a high level of features and trim. Typically mass-produced by employing a two-door platform with common mechanical components beneath their distinctive exteriors, these vehicles were a lucrative segment of the post-World War II automotive marketplace. In the U.S., the four-seat 1958 Ford Thunderbird (second generation) arguably defined the personal luxury car market segment.