2006 Jaguar XKR vs. 2003 Jaguar XJ
To start off, 2006 Jaguar XKR is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Jaguar XJ. In addition, the cost of maintenance, including insurance, on 2003 Jaguar XJ would be higher. At 4,196 cc (8 cylinders), 2006 Jaguar XKR is equipped with a bigger engine. In terms of performance, 2006 Jaguar XKR (391 HP @ 3500 RPM) has 151 more horse power than 2003 Jaguar XJ. (240 HP @ 6800 RPM). In normal driving conditions, 2006 Jaguar XKR should accelerate faster than 2003 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2006 Jaguar XKR weights approximately 300 kg more than 2003 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, 2006 Jaguar XKR (542 Nm @ 3500 RPM) has 249 more torque (in Nm) than 2003 Jaguar XJ. (293 Nm @ 4100 RPM). This means 2006 Jaguar XKR will have an easier job in driving up hills or pulling heavy equipment than 2003 Jaguar XJ.
Compare all specifications:
| 2006 Jaguar XKR | 2003 Jaguar XJ | |
| Make | Jaguar | Jaguar |
| Model | XKR | XJ |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4196 cc | 2968 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 391 HP | 240 HP |
| Engine RPM | 3500 RPM | 6800 RPM |
| Torque | 542 Nm | 293 Nm |
| Torque RPM | 3500 RPM | 4100 RPM |
| Engine Bore Size | 86 mm | 89 mm |
| Engine Stroke Size | 90.3 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1845 kg | 1545 kg |
| Vehicle Length | 4770 mm | 5100 mm |
| Vehicle Width | 1840 mm | 1870 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2590 mm | 3040 mm |
| Fuel Tank Capacity | 75 L | 85 L |
