1951 Alvis TB 21 vs. 1970 Rover P5B
To start off, 1970 Rover P5B is newer by 19 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 3,528 cc (8 cylinders), 1970 Rover P5B is equipped with a bigger engine. In terms of performance, 1970 Rover P5B (159 HP @ 5200 RPM) has 68 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1970 Rover P5B should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1970 Rover P5B (295 Nm) has 91 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1970 Rover P5B 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 | 1970 Rover P5B | |
| Make | Alvis | Rover |
| Model | TB 21 | P5B |
| Year Released | 1951 | 1970 |
| Engine Size | 2993 cc | 3528 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 159 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 204 Nm | 295 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4750 mm |
| Vehicle Width | 1680 mm | 1790 mm |
| Wheelbase Size | 2750 mm | 2820 mm |
