2003 Jaguar XJ vs. 2005 Jaguar S-Type
To start off, 2005 Jaguar S-Type is newer by 2 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 4,235 cc (8 cylinders), 2005 Jaguar S-Type is equipped with a bigger engine. In terms of performance, 2005 Jaguar S-Type (390 HP @ 6100 RPM) has 96 more horse power than 2003 Jaguar XJ. (294 HP @ 6100 RPM) In normal driving conditions, 2005 Jaguar S-Type should accelerate faster than 2003 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar S-Type weights approximately 180 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, 2005 Jaguar S-Type (541 Nm @ 3500 RPM) has 130 more torque (in Nm) than 2003 Jaguar XJ. (411 Nm @ 4100 RPM). This means 2005 Jaguar S-Type will have an easier job in driving up hills or pulling heavy equipment than 2003 Jaguar XJ.
Compare all specifications:
| 2003 Jaguar XJ | 2005 Jaguar S-Type | |
| Make | Jaguar | Jaguar |
| Model | XJ | S-Type |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4195 cc | 4235 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 294 HP | 390 HP |
| Engine RPM | 6100 RPM | 6100 RPM |
| Torque | 411 Nm | 541 Nm |
| Torque RPM | 4100 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 86 mm |
| Engine Stroke Size | 90.3 mm | 90.3 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1795 kg |
| Vehicle Length | 5090 mm | 4880 mm |
| Vehicle Width | 1870 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 3040 mm | 2920 mm |
| Fuel Tank Capacity | 85 L | 70 L |
