1971 Rover P5B vs. 1954 Rover P4
To start off, 1971 Rover P5B is newer by 17 year(s). Which means there will be less support and parts availability for 1954 Rover P4. In addition, the cost of maintenance, including insurance, on 1954 Rover P4 would be higher. At 3,528 cc (8 cylinders), 1971 Rover P5B is equipped with a bigger engine. In terms of performance, 1971 Rover P5B (158 HP @ 5200 RPM) has 84 more horse power than 1954 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 1971 Rover P5B should accelerate faster than 1954 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1971 Rover P5B weights approximately 190 kg more than 1954 Rover P4. 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, 1971 Rover P5B (296 Nm @ 3000 RPM) has 146 more torque (in Nm) than 1954 Rover P4. (150 Nm @ 2500 RPM). This means 1971 Rover P5B will have an easier job in driving up hills or pulling heavy equipment than 1954 Rover P4.
Compare all specifications:
| 1971 Rover P5B | 1954 Rover P4 | |
| Make | Rover | Rover |
| Model | P5B | P4 |
| Year Released | 1971 | 1954 |
| Engine Size | 3528 cc | 2103 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 74 HP |
| Engine RPM | 5200 RPM | 4200 RPM |
| Torque | 296 Nm | 150 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1580 kg | 1390 kg |
| Vehicle Length | 4750 mm | 4590 mm |
| Vehicle Width | 1790 mm | 1670 mm |
| Vehicle Height | 1480 mm | 1630 mm |
| Wheelbase Size | 2820 mm | 2830 mm |
