1983 Mercury Grand Marquis vs. 1966 Mercury Comet
To start off, 1983 Mercury Grand Marquis is newer by 17 year(s). Which means there will be less support and parts availability for 1966 Mercury Comet. In addition, the cost of maintenance, including insurance, on 1966 Mercury Comet would be higher. At 6,393 cc (8 cylinders), 1966 Mercury Comet is equipped with a bigger engine. In terms of performance, 1966 Mercury Comet (267 HP @ 4400 RPM) has 138 more horse power than 1983 Mercury Grand Marquis. (129 HP @ 3600 RPM) In normal driving conditions, 1966 Mercury Comet should accelerate faster than 1983 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1966 Mercury Comet weights approximately 85 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, 1966 Mercury Comet (546 Nm @ 2600 RPM) has 244 more torque (in Nm) than 1983 Mercury Grand Marquis. (302 Nm @ 2600 RPM). This means 1966 Mercury Comet will have an easier job in driving up hills or pulling heavy equipment than 1983 Mercury Grand Marquis.
Compare all specifications:
| 1983 Mercury Grand Marquis | 1966 Mercury Comet | |
| Make | Mercury | Mercury |
| Model | Grand Marquis | Comet |
| Year Released | 1983 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 4942 cc | 6393 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 129 HP | 267 HP |
| Engine RPM | 3600 RPM | 4400 RPM |
| Torque | 302 Nm | 546 Nm |
| Torque RPM | 2600 RPM | 2600 RPM |
| Engine Bore Size | 101.6 mm | 103 mm |
| Engine Stroke Size | 76.2 mm | 96 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1690 kg | 1775 kg |
| Vehicle Length | 5400 mm | 5000 mm |
| Vehicle Width | 1980 mm | 1880 mm |
| Vehicle Height | 1390 mm | 1400 mm |
| Wheelbase Size | 2910 mm | 2950 mm |
