2005 Jaguar XJ vs. 2008 Porsche 911
To start off, 2008 Porsche 911 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Jaguar XJ. In addition, the cost of maintenance, including insurance, on 2005 Jaguar XJ would be higher. At 3,824 cc (6 cylinders), 2008 Porsche 911 is equipped with a bigger engine. In terms of performance, 2008 Porsche 911 (350 HP @ 6600 RPM) has 96 more horse power than 2005 Jaguar XJ. (254 HP @ 6250 RPM) In normal driving conditions, 2008 Porsche 911 should accelerate faster than 2005 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJ weights approximately 148 kg more than 2008 Porsche 911.
Because 2008 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Jaguar XJ. In wet, icy, snow, or gravel driving conditions, 2008 Porsche 911 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, 2008 Porsche 911 (400 Nm @ 4600 RPM) has 65 more torque (in Nm) than 2005 Jaguar XJ. (335 Nm @ 4200 RPM). This means 2008 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Jaguar XJ.
Compare all specifications:
| 2005 Jaguar XJ | 2008 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJ | 911 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3555 cc | 3824 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 350 HP |
| Engine RPM | 6250 RPM | 6600 RPM |
| Torque | 335 Nm | 400 Nm |
| Torque RPM | 4200 RPM | 4600 RPM |
| Engine Bore Size | 86 mm | 99 mm |
| Engine Stroke Size | 76.5 mm | 82.8 mm |
| Engine Compression Ratio | 11.0:1 | 11.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 288 km/hour |
| Acceleration 0-100mph | 7.6 seconds | 4.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1684 kg | 1536 kg |
| Vehicle Length | 5100 mm | 4430 mm |
| Vehicle Width | 1870 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 3170 mm | 2360 mm |
| Fuel Consumption Overall | 10.7 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 85 L | 67 L |
