1999 Jaguar XJ vs. 1991 Jaguar XJS
To start off, 1999 Jaguar XJ is newer by 8 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 5,342 cc (12 cylinders), 1991 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1991 Jaguar XJS (291 HP @ 5500 RPM) has 1 more horse power than 1999 Jaguar XJ. (290 HP @ 6100 RPM) In normal driving conditions, 1991 Jaguar XJS should accelerate faster than 1999 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 1991 Jaguar XJS weights approximately 220 kg more than 1999 Jaguar XJ. 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, 1991 Jaguar XJS (440 Nm @ 3250 RPM) has 47 more torque (in Nm) than 1999 Jaguar XJ. (393 Nm @ 4250 RPM). This means 1991 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1999 Jaguar XJ. 1999 Jaguar XJ has automatic transmission and 1991 Jaguar XJS has manual transmission. 1991 Jaguar XJS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Jaguar XJ | 1991 Jaguar XJS | |
| Make | Jaguar | Jaguar |
| Model | XJ | XJS |
| Year Released | 1999 | 1991 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3996 cc | 5342 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 290 HP | 291 HP |
| Engine RPM | 6100 RPM | 5500 RPM |
| Torque | 393 Nm | 440 Nm |
| Torque RPM | 4250 RPM | 3250 RPM |
| Engine Bore Size | 86 mm | 90 mm |
| Engine Stroke Size | 86 mm | 70 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1710 kg | 1930 kg |
| Vehicle Length | 5160 mm | 4770 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1260 mm |
| Wheelbase Size | 2880 mm | 2600 mm |
| Fuel Tank Capacity | 87 L | 82 L |
