1978 Mercury Grand Marquis vs. 1983 Mercury Grand Marquis
To start off, 1983 Mercury Grand Marquis is newer by 5 year(s). Which means there will be less support and parts availability for 1978 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1978 Mercury Grand Marquis would be higher. At 5,766 cc (8 cylinders), 1978 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1978 Mercury Grand Marquis (139 HP @ 3200 RPM) has 10 more horse power than 1983 Mercury Grand Marquis. (129 HP @ 3600 RPM). In normal driving conditions, 1978 Mercury Grand Marquis should accelerate faster than 1983 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Grand Marquis weights approximately 20 kg more than 1983 Mercury Grand Marquis. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1978 Mercury Grand Marquis (353 Nm @ 2200 RPM) has 51 more torque (in Nm) than 1983 Mercury Grand Marquis. (302 Nm @ 2600 RPM). This means 1978 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1983 Mercury Grand Marquis.
Compare all specifications:
| 1978 Mercury Grand Marquis | 1983 Mercury Grand Marquis | |
| Make | Mercury | Mercury |
| Model | Grand Marquis | Grand Marquis |
| Year Released | 1978 | 1983 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5766 cc | 4942 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 139 HP | 129 HP |
| Engine RPM | 3200 RPM | 3600 RPM |
| Torque | 353 Nm | 302 Nm |
| Torque RPM | 2200 RPM | 2600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1690 kg |
| Vehicle Length | 5400 mm | 5400 mm |
| Vehicle Width | 1980 mm | 1980 mm |
| Vehicle Height | 1390 mm | 1390 mm |
| Wheelbase Size | 2910 mm | 2910 mm |
