1951 Alvis TA 21 vs. 1982 Mercury Cougar
To start off, 1982 Mercury Cougar is newer by 31 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 1951 Alvis TA 21 (93 HP @ 4000 RPM) has 2 more horse power than 1982 Mercury Cougar. (91 HP @ 4600 RPM). In normal driving conditions, 1951 Alvis TA 21 should accelerate faster than 1982 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 133 kg more than 1982 Mercury Cougar. 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, 1951 Alvis TA 21 (204 Nm @ 2000 RPM) has 40 more torque (in Nm) than 1982 Mercury Cougar. (164 Nm @ 2600 RPM). This means 1951 Alvis TA 21 will have an easier job in driving up hills or pulling heavy equipment than 1982 Mercury Cougar.
Compare all specifications:
| 1951 Alvis TA 21 | 1982 Mercury Cougar | |
| Make | Alvis | Mercury |
| Model | TA 21 | Cougar |
| Year Released | 1951 | 1982 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2301 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 93 HP | 91 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 204 Nm | 164 Nm |
| Torque RPM | 2000 RPM | 2600 RPM |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1315 kg |
| Vehicle Length | 4630 mm | 4960 mm |
| Vehicle Width | 1680 mm | 1810 mm |
| Vehicle Height | 1600 mm | 1370 mm |
| Wheelbase Size | 2840 mm | 2690 mm |
