2005 BMW 645 vs. 1991 Jaguar XJS
To start off, 2005 BMW 645 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Jaguar XJS. In addition, the cost of maintenance, including insurance, on 1991 Jaguar XJS would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 109 more horse power than 1991 Jaguar XJS. (217 HP @ 5300 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 1991 Jaguar XJS. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 265 kg more than 1991 Jaguar XJS. 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 116 more torque (in Nm) than 1991 Jaguar XJS. (331 Nm @ 4000 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1991 Jaguar XJS.
Compare all specifications:
| 2005 BMW 645 | 1991 Jaguar XJS | |
| Make | BMW | Jaguar |
| Model | 645 | XJS |
| Year Released | 2005 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 3590 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 326 HP | 217 HP |
| Engine RPM | 6100 RPM | 5300 RPM |
| Torque | 447 Nm | 331 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 91 mm |
| Engine Stroke Size | 83 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1895 kg | 1630 kg |
| Vehicle Length | 4830 mm | 4880 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1270 mm |
| Wheelbase Size | 2890 mm | 2600 mm |
