The Mercury Grand Marquis is a full-size rear-wheel drive sedan sold by the Mercury division of the Ford Motor Company. It is essentially Mercury's version of the Ford Crown Victoria with which it shares its Panther platform along with the Lincoln Town Car. All three vehicles are presently manufactured at at the St. Thomas Assembly Plant in Canada though a plant in St. Louis, Missouri was also used until 1985. Since its introduction, the Grand Marquis has only been available with V8 engines, and remains one of the last "traditional" American full-size cars, with features including 6-passenger bench seating.
The Grand Marquis went into production in 1983 as a separate model (previously being a trim level for the Mercury Marquis from 1975 until 1982), and is currently in its third generation, having also been facedlifted many times along the way. It has also spawned a short-lived performance variant bearing the historic nameplate Mercury Marauder for 2003 and 2004.