1991 Jaguar XJS vs. 1998 TVR Speed 12
To start off, 1998 TVR Speed 12 is newer by 7 year(s). Which means there will be less support and parts availability for 1991 Jaguar XJS. In addition, the cost of maintenance, including insurance, on 1991 Jaguar XJS would be higher. At 7,730 cc (12 cylinders), 1998 TVR Speed 12 is equipped with a bigger engine. In terms of performance, 1998 TVR Speed 12 (790 HP @ 7750 RPM) has 499 more horse power than 1991 Jaguar XJS. (291 HP @ 5500 RPM) In normal driving conditions, 1998 TVR Speed 12 should accelerate faster than 1991 Jaguar XJS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Jaguar XJS weights approximately 930 kg more than 1998 TVR Speed 12.
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, 1998 TVR Speed 12 (881 Nm @ 5750 RPM) has 441 more torque (in Nm) than 1991 Jaguar XJS. (440 Nm @ 3250 RPM). This means 1998 TVR Speed 12 will have an easier job in driving up hills or pulling heavy equipment than 1991 Jaguar XJS.
Compare all specifications:
| 1991 Jaguar XJS | 1998 TVR Speed 12 | |
| Make | Jaguar | TVR |
| Model | XJS | Speed 12 |
| Year Released | 1991 | 1998 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 5342 cc | 7730 cc |
| Engine Cylinders | 12 cylinders | 12 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 291 HP | 790 HP |
| Engine RPM | 5500 RPM | 7750 RPM |
| Torque | 440 Nm | 881 Nm |
| Torque RPM | 3250 RPM | 5750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1930 kg | 1000 kg |
| Vehicle Length | 4770 mm | 4310 mm |
| Vehicle Width | 1800 mm | 1970 mm |
| Vehicle Height | 1260 mm | 1110 mm |
| Wheelbase Size | 2600 mm | 2570 mm |
| Fuel Tank Capacity | 82 L | 57 L |
