1998 Jaguar XJ8 vs. 2005 Porsche Cayenne
To start off, 2005 Porsche Cayenne is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Jaguar XJ8. In addition, the cost of maintenance, including insurance, on 1998 Jaguar XJ8 would be higher. At 4,507 cc (8 cylinders), 2005 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2005 Porsche Cayenne (451 HP @ 6000 RPM) has 161 more horse power than 1998 Jaguar XJ8. (290 HP @ 6100 RPM) In normal driving conditions, 2005 Porsche Cayenne should accelerate faster than 1998 Jaguar XJ8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche Cayenne weights approximately 640 kg more than 1998 Jaguar XJ8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1998 Jaguar XJ8. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Porsche Cayenne (624 Nm @ 2250 RPM) has 99 more torque (in Nm) than 1998 Jaguar XJ8. (525 Nm @ 4250 RPM). This means 2005 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1998 Jaguar XJ8.
Compare all specifications:
| 1998 Jaguar XJ8 | 2005 Porsche Cayenne | |
| Make | Jaguar | Porsche |
| Model | XJ8 | Cayenne |
| Year Released | 1998 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3981 cc | 4507 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 290 HP | 451 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 525 Nm | 624 Nm |
| Torque RPM | 4250 RPM | 2250 RPM |
| Engine Bore Size | 86.1 mm | 93 mm |
| Engine Stroke Size | 86.1 mm | 83 mm |
| Engine Compression Ratio | 10.8:1 | 9.5:1 |
| Top Speed | 241 km/hour | 266 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 5.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1790 kg | 2430 kg |
| Vehicle Length | 5030 mm | 4790 mm |
| Vehicle Width | 1800 mm | 1930 mm |
| Vehicle Height | 1350 mm | 1710 mm |
| Wheelbase Size | 2920 mm | 2860 mm |
| Fuel Tank Capacity | 87 L | 100 L |
