1951 Allard J1 vs. 1983 BMW 525
To start off, 1983 BMW 525 is newer by 32 year(s). Which means there will be less support and parts availability for 1951 Allard J1. In addition, the cost of maintenance, including insurance, on 1951 Allard J1 would be higher. At 3,917 cc (8 cylinders), 1951 Allard J1 is equipped with a bigger engine. In terms of performance, 1983 BMW 525 (123 HP @ 4250 RPM) has 23 more horse power than 1951 Allard J1. (100 HP @ 3800 RPM) In normal driving conditions, 1983 BMW 525 should accelerate faster than 1951 Allard J1. With that said, vehicle weight also plays an important factor in acceleration. 1983 BMW 525 weights approximately 104 kg more than 1951 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, 1951 Allard J1 (305 Nm @ 2500 RPM) has 64 more torque (in Nm) than 1983 BMW 525. (241 Nm @ 3250 RPM). This means 1951 Allard J1 will have an easier job in driving up hills or pulling heavy equipment than 1983 BMW 525.
Compare all specifications:
| 1951 Allard J1 | 1983 BMW 525 | |
| Make | Allard | BMW |
| Model | J1 | 525 |
| Year Released | 1951 | 1983 |
| Engine Position | Front | Front |
| Engine Size | 3917 cc | 2693 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 123 HP |
| Engine RPM | 3800 RPM | 4250 RPM |
| Torque | 305 Nm | 241 Nm |
| Torque RPM | 2500 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 95.3 mm | 81 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1146 kg | 1250 kg |
| Vehicle Length | 3690 mm | 4630 mm |
| Vehicle Width | 1480 mm | 1710 mm |
| Vehicle Height | 1510 mm | 1430 mm |
| Wheelbase Size | 2440 mm | 2630 mm |
| Fuel Tank Capacity | 113 L | 70 L |
