1966 Mercury Comet vs. 1972 Plymouth Valiant
To start off, 1972 Plymouth Valiant is newer by 6 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 158 more horse power than 1972 Plymouth Valiant. (109 HP @ 4000 RPM). In normal driving conditions, 1966 Mercury Comet should accelerate faster than 1972 Plymouth Valiant. With that said, vehicle weight also plays an important factor in acceleration. 1966 Mercury Comet weights approximately 465 kg more than 1972 Plymouth Valiant. 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 295 more torque (in Nm) than 1972 Plymouth Valiant. (251 Nm @ 2000 RPM). This means 1966 Mercury Comet will have an easier job in driving up hills or pulling heavy equipment than 1972 Plymouth Valiant.
Compare all specifications:
| 1966 Mercury Comet | 1972 Plymouth Valiant | |
| Make | Mercury | Plymouth |
| Model | Comet | Valiant |
| Year Released | 1966 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 6393 cc | 3678 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 267 HP | 109 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 546 Nm | 251 Nm |
| Torque RPM | 2600 RPM | 2000 RPM |
| Engine Bore Size | 103 mm | 86.4 mm |
| Engine Stroke Size | 96 mm | 104.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1775 kg | 1310 kg |
| Vehicle Length | 5000 mm | 4790 mm |
| Vehicle Width | 1880 mm | 1820 mm |
| Vehicle Height | 1400 mm | 1390 mm |
| Wheelbase Size | 2950 mm | 2750 mm |
