1951 Alvis TB 21 vs. 1967 Monteverdi 375
To start off, 1967 Monteverdi 375 is newer by 16 year(s). Which means there will be less support and parts availability for 1951 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TB 21 would be higher. At 7,206 cc (8 cylinders), 1967 Monteverdi 375 is equipped with a bigger engine. In terms of performance, 1967 Monteverdi 375 (375 HP @ 4600 RPM) has 284 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1967 Monteverdi 375 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1967 Monteverdi 375 (652 Nm) has 448 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1967 Monteverdi 375 will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 1967 Monteverdi 375 | |
| Make | Alvis | Monteverdi |
| Model | TB 21 | 375 |
| Year Released | 1951 | 1967 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 7206 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 375 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 204 Nm | 652 Nm |
| Engine Bore Size | 84 mm | 109.7 mm |
| Engine Stroke Size | 90 mm | 95.3 mm |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4610 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Wheelbase Size | 2750 mm | 2520 mm |
