1951 Alvis TA 21 vs. 1970 Monteverdi Hai 450
To start off, 1970 Monteverdi Hai 450 is newer by 19 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 6,974 cc (8 cylinders), 1970 Monteverdi Hai 450 is equipped with a bigger engine. In terms of performance, 1970 Monteverdi Hai 450 (391 HP @ 5000 RPM) has 298 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1970 Monteverdi Hai 450 should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 158 kg more than 1970 Monteverdi Hai 450.
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, 1970 Monteverdi Hai 450 (586 Nm @ 4000 RPM) has 382 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 1970 Monteverdi Hai 450 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 | 1970 Monteverdi Hai 450 | |
| Make | Alvis | Monteverdi |
| Model | TA 21 | Hai 450 |
| Year Released | 1951 | 1970 |
| Engine Position | Front | Middle |
| Engine Size | 2993 cc | 6974 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 93 HP | 391 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 204 Nm | 586 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 108 mm |
| Engine Stroke Size | 90 mm | 95.2 mm |
| Engine Compression Ratio | 7.1:1 | 10.3:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1290 kg |
| Vehicle Length | 4630 mm | 4410 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1600 mm | 1100 mm |
| Wheelbase Size | 2840 mm | 2520 mm |
| Fuel Tank Capacity | 64 L | 130 L |
