1948 Allard J1 vs. 1954 Rover P4
To start off, 1954 Rover P4 is newer by 6 year(s). Which means there will be less support and parts availability for 1948 Allard J1. In addition, the cost of maintenance, including insurance, on 1948 Allard J1 would be higher. At 3,915 cc (8 cylinders), 1948 Allard J1 is equipped with a bigger engine. In terms of performance, 1948 Allard J1 (100 HP @ 3800 RPM) has 21 more horse power than 1954 Rover P4. (79 HP @ 4500 RPM). In normal driving conditions, 1948 Allard J1 should accelerate faster than 1954 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1954 Rover P4 weights approximately 260 kg more than 1948 Allard J1.
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, 1948 Allard J1 (305 Nm @ 2500 RPM) has 117 more torque (in Nm) than 1954 Rover P4. (188 Nm @ 1750 RPM). This means 1948 Allard J1 will have an easier job in driving up hills or pulling heavy equipment than 1954 Rover P4.
Compare all specifications:
| 1948 Allard J1 | 1954 Rover P4 | |
| Make | Allard | Rover |
| Model | J1 | P4 |
| Year Released | 1948 | 1954 |
| Engine Position | Front | Front |
| Engine Size | 3915 cc | 2638 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 100 HP | 79 HP |
| Engine RPM | 3800 RPM | 4500 RPM |
| Torque | 305 Nm | 188 Nm |
| Torque RPM | 2500 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1140 kg | 1400 kg |
| Vehicle Length | 3690 mm | 4550 mm |
| Vehicle Width | 1480 mm | 1680 mm |
| Vehicle Height | 1510 mm | 1630 mm |
| Wheelbase Size | 2440 mm | 2830 mm |
| Fuel Tank Capacity | 113 L | 52 L |
