1951 Alvis TB 21 vs. 1959 Rover P4
To start off, 1959 Rover P4 is newer by 8 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 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1959 Rover P4 (92 HP @ 4250 RPM) has 1 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1959 Rover P4 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 36 more torque (in Nm) than 1959 Rover P4. (168 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1959 Rover P4.
Compare all specifications:
| 1951 Alvis TB 21 | 1959 Rover P4 | |
| Make | Alvis | Rover |
| Model | TB 21 | P4 |
| Year Released | 1951 | 1959 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2625 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 92 HP |
| Engine RPM | 4000 RPM | 4250 RPM |
| Torque | 204 Nm | 168 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4540 mm |
| Vehicle Width | 1680 mm | 1680 mm |
| Wheelbase Size | 2750 mm | 2830 mm |
