2008 Alpina B7 vs. 2003 Jaguar XJ
To start off, 2008 Alpina B7 is newer by 5 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 4,398 cc (8 cylinders), 2008 Alpina B7 is equipped with a bigger engine. In terms of performance, 2008 Alpina B7 (493 HP @ 5500 RPM) has 199 more horse power than 2003 Jaguar XJ. (294 HP @ 6100 RPM). In normal driving conditions, 2008 Alpina B7 should accelerate faster than 2003 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2008 Alpina B7 weights approximately 375 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, 2008 Alpina B7 (700 Nm @ 4250 RPM) has 289 more torque (in Nm) than 2003 Jaguar XJ. (411 Nm @ 4100 RPM). This means 2008 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Jaguar XJ.
Compare all specifications:
| 2008 Alpina B7 | 2003 Jaguar XJ | |
| Make | Alpina | Jaguar |
| Model | B7 | XJ |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4195 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 294 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 700 Nm | 411 Nm |
| Torque RPM | 4250 RPM | 4100 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 82.8 mm | 90.3 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1990 kg | 1615 kg |
| Vehicle Length | 5180 mm | 5090 mm |
| Vehicle Width | 1910 mm | 1870 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 3140 mm | 3040 mm |
| Fuel Tank Capacity | 88 L | 85 L |
