2003 Jaguar XJ vs. 2009 Porsche Cayenne
To start off, 2009 Porsche Cayenne is newer by 6 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 4,806 cc (8 cylinders), 2009 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2009 Porsche Cayenne (380 HP @ 6200 RPM) has 86 more horse power than 2003 Jaguar XJ. (294 HP @ 6100 RPM) In normal driving conditions, 2009 Porsche Cayenne should accelerate faster than 2003 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2003 Jaguar XJ weights approximately 265 kg more than 2009 Porsche Cayenne.
Because 2009 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2003 Jaguar XJ. In wet, icy, snow, or gravel driving conditions, 2009 Porsche Cayenne will offer significantly more control. 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, 2009 Porsche Cayenne (500 Nm @ 3500 RPM) has 89 more torque (in Nm) than 2003 Jaguar XJ. (411 Nm @ 4100 RPM). This means 2009 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2003 Jaguar XJ. 2003 Jaguar XJ has automatic transmission and 2009 Porsche Cayenne has manual transmission. 2009 Porsche Cayenne will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Jaguar XJ | 2009 Porsche Cayenne | |
| Make | Jaguar | Porsche |
| Model | XJ | Cayenne |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4195 cc | 4806 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 294 HP | 380 HP |
| Engine RPM | 6100 RPM | 6200 RPM |
| Torque | 411 Nm | 500 Nm |
| Torque RPM | 4100 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 96 mm |
| Engine Stroke Size | 90.3 mm | 83 mm |
| Engine Compression Ratio | 11.0:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1615 kg | 1350 kg |
| Vehicle Length | 5090 mm | 4800 mm |
| Vehicle Width | 1870 mm | 1710 mm |
| Vehicle Height | 1450 mm | 1930 mm |
| Wheelbase Size | 3040 mm | 2860 mm |
| Fuel Tank Capacity | 85 L | 100 L |
