Mercury Grand Marquis 1998–2002 car dimensions: 5382 mm long, 1987 mm wide and 1443 mm high. Unladen weight is 1,777 kg. Braked towing is 907 kg.
The cabin seats six with a front split-bench and offers standard power windows, locks, driver's seat, tilt steering and cruise control. Air conditioning is standard while electronic automatic temperature control is available on higher trims. No parking sensors, cameras or advanced driver aids are fitted.
Trunk volume is 583 litres with the rear seats in place.
Maximum trailer weight is 907 kg. No factory towing package is offered. The optional handling package adds heavy-duty suspension with rear air springs plus auxiliary coolers for the transmission and power steering.
The cabin is wide and quiet with a split-bench front seat for six adults. Power driver seat is standard with multi-way adjustment and available power lumbar. Higher grades add dual power seats, leather, and electronic automatic temperature control. Rear seats offer ample leg and head room with fold-down armrests. Solar-tinted glass and standard air conditioning keep the interior cool. Optional moonroof is available on some models.
Fuel economy rated 15 city/22-23 highway MPG combined 18 with 19-gallon tank and 87-octane fuel.
NHTSA front crash tests score 5 stars driver and passenger. side 4 stars. rollover 5 stars.
Standard dual front airbags. ABS and traction control standard by 2002, optional earlier. child door locks standard.
2001+ models add Personal Safety System with dual-stage airbags, pretensioners and seat-position sensors.
Power 4-wheel disc brakes standard. emergency trunk release added in 2000.
The 4.6-liter V8 runs on regular 87-octane gasoline. EPA figures list 15 mpg city and 22-23 mpg highway for a combined 18 mpg. The 19-gallon tank supports long highway runs. Dual exhaust on some packages raises output but fuel use stays similar.
Follow the owner's scheduled maintenance guide for oil and filter changes using the specified viscosity. Transmission fluid, coolant and other services follow the mileage intervals listed in the guide. Regular tire rotations and brake inspections keep the car reliable.
Safety equipment starts with dual front airbags and four-wheel disc brakes. ABS and all-speed traction control move from optional to standard by 2002. Later years in the generation add dual-stage airbags, belt pretensioners, seat sensors and LATCH anchors. NHTSA rates frontal protection at five stars and side at four.
The body-on-frame design and roomy trunk make the car easy to live with for families or highway travel. Keep up with fluid checks and the antitheft system. Optional air suspension on handling packages needs occasional inspection for leaks.
Length 5382 mm, Width 1987 mm, Height 1443 mm, Wheelbase 2913 mm (Grand Marquis 1998–2002)
Sources: manufacturer data, 1998 Mercury Grand Marquis Owner's Manual, cars.com and KBB.