Mercury Grand Marquis Specs, Engines & Dimensions (1979–1991) — First Generation
The First Generation Mercury Grand Marquis is a full-size Sedan with a traditional gasoline powertrain and rear-wheel drive. It favors quiet, unhurried travel over sporty response.
A Mercury Grand Marquis engine here is a gasoline unit with an automatic transmission, so you cruise more than you shift. The 4.9 AT Sedan is one example: gasoline, automatic, and rear-wheel drive. That powertrain and drivetrain pairing suits a large, comfortable Sedan, not the whole lineup.
Sedan — Mercury Grand Marquis Engines and Transmissions
Sedan Mercury Grand Marquis Engines and Transmissions