1947 Allard J1 vs. 1963 Rover P5
To start off, 1963 Rover P5 is newer by 16 year(s). Which means there will be less support and parts availability for 1947 Allard J1. In addition, the cost of maintenance, including insurance, on 1947 Allard J1 would be higher. At 3,917 cc (8 cylinders), 1947 Allard J1 is equipped with a bigger engine. In terms of performance, 1963 Rover P5 (119 HP @ 4800 RPM) has 19 more horse power than 1947 Allard J1. (100 HP @ 3800 RPM) In normal driving conditions, 1963 Rover P5 should accelerate faster than 1947 Allard J1. With that said, vehicle weight also plays an important factor in acceleration. 1963 Rover P5 weights approximately 580 kg more than 1947 Allard J1. 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, 1947 Allard J1 (305 Nm @ 2500 RPM) has 87 more torque (in Nm) than 1963 Rover P5. (218 Nm @ 2650 RPM). This means 1947 Allard J1 will have an easier job in driving up hills or pulling heavy equipment than 1963 Rover P5. 1963 Rover P5 has automatic transmission and 1947 Allard J1 has manual transmission. 1947 Allard J1 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1963 Rover P5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1947 Allard J1 | 1963 Rover P5 | |
| Make | Allard | Rover |
| Model | J1 | P5 |
| Year Released | 1947 | 1963 |
| Engine Position | Front | Front |
| Engine Size | 3917 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 100 HP | 119 HP |
| Engine RPM | 3800 RPM | 4800 RPM |
| Torque | 305 Nm | 218 Nm |
| Torque RPM | 2500 RPM | 2650 RPM |
| Engine Bore Size | 81 mm | 77.8 mm |
| Engine Stroke Size | 95.3 mm | 105 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1140 kg | 1720 kg |
| Vehicle Length | 3690 mm | 4750 mm |
| Vehicle Width | 1480 mm | 1790 mm |
| Vehicle Height | 1510 mm | 1480 mm |
| Wheelbase Size | 2440 mm | 2820 mm |
| Fuel Tank Capacity | 90 L | 45 L |
