1981 Jaguar XJS vs. 2005 Jaguar XJR
To start off, 2005 Jaguar XJR is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Jaguar XJS. In addition, the cost of maintenance, including insurance, on 1981 Jaguar XJS would be higher. At 5,344 cc (12 cylinders), 1981 Jaguar XJS is equipped with a bigger engine. In terms of performance, 2005 Jaguar XJR (390 HP @ 6100 RPM) has 91 more horse power than 1981 Jaguar XJS. (299 HP @ 5500 RPM) In normal driving conditions, 2005 Jaguar XJR should accelerate faster than 1981 Jaguar XJS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJR weights approximately 1 kg more than 1981 Jaguar XJS. 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, 2005 Jaguar XJR (554 Nm @ 3500 RPM) has 123 more torque (in Nm) than 1981 Jaguar XJS. (431 Nm @ 3000 RPM). This means 2005 Jaguar XJR will have an easier job in driving up hills or pulling heavy equipment than 1981 Jaguar XJS.
Compare all specifications:
| 1981 Jaguar XJS | 2005 Jaguar XJR | |
| Make | Jaguar | Jaguar |
| Model | XJS | XJR |
| Year Released | 1981 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5344 cc | 4196 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 299 HP | 390 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 431 Nm | 554 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Top Speed | 240 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 5.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1707 kg | 1708 kg |
| Vehicle Length | 4880 mm | 5090 mm |
| Vehicle Width | 1780 mm | 1870 mm |
| Vehicle Height | 1270 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 3040 mm |
| Fuel Tank Capacity | 90 L | 85 L |
