1951 Alvis TA 21 vs. 1973 Mercury Montego
To start off, 1973 Mercury Montego is newer by 22 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 4,095 cc (6 cylinders), 1973 Mercury Montego is equipped with a bigger engine. In terms of performance, 1973 Mercury Montego (96 HP @ 3600 RPM) has 3 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1973 Mercury Montego should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1973 Mercury Montego weights approximately 247 kg more than 1951 Alvis TA 21. 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, 1973 Mercury Montego (248 Nm @ 1600 RPM) has 44 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 1973 Mercury Montego will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 1973 Mercury Montego | |
| Make | Alvis | Mercury |
| Model | TA 21 | Montego |
| Year Released | 1951 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4095 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 96 HP |
| Engine RPM | 4000 RPM | 3600 RPM |
| Torque | 204 Nm | 248 Nm |
| Torque RPM | 2000 RPM | 1600 RPM |
| Engine Bore Size | 84 mm | 93.6 mm |
| Engine Stroke Size | 90 mm | 99.3 mm |
| Engine Compression Ratio | 7.1:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 6 seats |
| Vehicle Weight | 1448 kg | 1695 kg |
| Vehicle Length | 4630 mm | 5300 mm |
| Vehicle Width | 1680 mm | 2010 mm |
| Vehicle Height | 1600 mm | 1350 mm |
| Wheelbase Size | 2840 mm | 3010 mm |
