2006 BMW 645 vs. 1991 Jaguar XJR-15
To start off, 2006 BMW 645 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Jaguar XJR-15. In addition, the cost of maintenance, including insurance, on 1991 Jaguar XJR-15 would be higher. At 5,993 cc (12 cylinders), 1991 Jaguar XJR-15 is equipped with a bigger engine. In terms of performance, 1991 Jaguar XJR-15 (450 HP @ 6250 RPM) has 122 more horse power than 2006 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 1991 Jaguar XJR-15 should accelerate faster than 2006 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 786 kg more than 1991 Jaguar XJR-15.
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, 1991 Jaguar XJR-15 (570 Nm @ 4500 RPM) has 120 more torque (in Nm) than 2006 BMW 645. (450 Nm @ 3600 RPM). This means 1991 Jaguar XJR-15 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645.
Compare all specifications:
| 2006 BMW 645 | 1991 Jaguar XJR-15 | |
| Make | BMW | Jaguar |
| Model | 645 | XJR-15 |
| Year Released | 2006 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4398 cc | 5993 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 328 HP | 450 HP |
| Engine RPM | 6100 RPM | 6250 RPM |
| Torque | 450 Nm | 570 Nm |
| Torque RPM | 3600 RPM | 4500 RPM |
| Engine Bore Size | 92 mm | 90 mm |
| Engine Stroke Size | 83 mm | 78.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 307 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 3.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 1 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1836 kg | 1050 kg |
| Vehicle Length | 4830 mm | 4810 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1380 mm | 1110 mm |
| Wheelbase Size | 2790 mm | 2870 mm |
| Fuel Tank Capacity | 70 L | 90 L |
