1948 Allard J1 vs. 1975 Jaguar XJS
To start off, 1975 Jaguar XJS is newer by 27 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 5,342 cc (12 cylinders), 1975 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1975 Jaguar XJS (291 HP @ 5500 RPM) has 191 more horse power than 1948 Allard J1. (100 HP @ 3800 RPM) In normal driving conditions, 1975 Jaguar XJS should accelerate faster than 1948 Allard J1. With that said, vehicle weight also plays an important factor in acceleration. 1975 Jaguar XJS weights approximately 630 kg more than 1948 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, 1975 Jaguar XJS (431 Nm @ 3250 RPM) has 126 more torque (in Nm) than 1948 Allard J1. (305 Nm @ 2500 RPM). This means 1975 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1948 Allard J1.
Compare all specifications:
| 1948 Allard J1 | 1975 Jaguar XJS | |
| Make | Allard | Jaguar |
| Model | J1 | XJS |
| Year Released | 1948 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 3915 cc | 5342 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 100 HP | 291 HP |
| Engine RPM | 3800 RPM | 5500 RPM |
| Torque | 305 Nm | 431 Nm |
| Torque RPM | 2500 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 90 mm |
| Engine Stroke Size | 95.3 mm | 70 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1140 kg | 1770 kg |
| Vehicle Length | 3690 mm | 4770 mm |
| Vehicle Width | 1480 mm | 1800 mm |
| Vehicle Height | 1510 mm | 1270 mm |
| Wheelbase Size | 2440 mm | 2600 mm |
| Fuel Tank Capacity | 113 L | 86 L |
