2008 Jaguar XJ vs. 2005 Porsche 911
To start off, 2008 Jaguar XJ is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 4,200 cc (8 cylinders), 2008 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (316 HP @ 4250 RPM) has 16 more horse power than 2008 Jaguar XJ. (300 HP @ 6000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2008 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2008 Jaguar XJ weights approximately 189 kg more than 2005 Porsche 911.
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, 2008 Jaguar XJ (420 Nm @ 4100 RPM) has 50 more torque (in Nm) than 2005 Porsche 911. (370 Nm @ 4250 RPM). This means 2008 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 2008 Jaguar XJ | 2005 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJ | 911 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4200 cc | 3595 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 300 HP | 316 HP |
| Engine RPM | 6000 RPM | 4250 RPM |
| Torque | 420 Nm | 370 Nm |
| Torque RPM | 4100 RPM | 4250 RPM |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Top Speed | 194 km/hour | 285 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 5.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1684 kg | 1495 kg |
| Vehicle Length | 5100 mm | 4440 mm |
| Vehicle Width | 2110 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 3040 mm | 2360 mm |
| Fuel Consumption Overall | 10.5 L/100km | 11 L/100km |
| Fuel Tank Capacity | 85 L | 64 L |
