1955 Alvis TC 21 vs. 1974 Mercury Comet
To start off, 1974 Mercury Comet is newer by 19 year(s). Which means there will be less support and parts availability for 1955 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1955 Alvis TC 21 would be higher. At 3,272 cc (6 cylinders), 1974 Mercury Comet is equipped with a bigger engine. In terms of performance, 1955 Alvis TC 21 (105 HP @ 4000 RPM) has 22 more horse power than 1974 Mercury Comet. (83 HP @ 3800 RPM). In normal driving conditions, 1955 Alvis TC 21 should accelerate faster than 1974 Mercury Comet. With that said, vehicle weight also plays an important factor in acceleration. 1955 Alvis TC 21 weights approximately 230 kg more than 1974 Mercury Comet. 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, 1955 Alvis TC 21 (221 Nm @ 2500 RPM) has 15 more torque (in Nm) than 1974 Mercury Comet. (206 Nm @ 1800 RPM). This means 1955 Alvis TC 21 will have an easier job in driving up hills or pulling heavy equipment than 1974 Mercury Comet.
Compare all specifications:
| 1955 Alvis TC 21 | 1974 Mercury Comet | |
| Make | Alvis | Mercury |
| Model | TC 21 | Comet |
| Year Released | 1955 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3272 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 105 HP | 83 HP |
| Engine RPM | 4000 RPM | 3800 RPM |
| Torque | 221 Nm | 206 Nm |
| Torque RPM | 2500 RPM | 1800 RPM |
| Engine Bore Size | 84 mm | 93.5 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1450 kg | 1220 kg |
| Vehicle Length | 4810 mm | 4620 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1590 mm | 1350 mm |
| Wheelbase Size | 2840 mm | 2630 mm |
