1981 BMW 525 vs. 2005 Jaguar XJ
To start off, 2005 Jaguar XJ is newer by 24 year(s). Which means there will be less support and parts availability for 1981 BMW 525. In addition, the cost of maintenance, including insurance, on 1981 BMW 525 would be higher. At 4,195 cc (8 cylinders), 2005 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2005 Jaguar XJ (390 HP @ 6000 RPM) has 242 more horse power than 1981 BMW 525. (148 HP @ 5500 RPM) In normal driving conditions, 2005 Jaguar XJ should accelerate faster than 1981 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJ weights approximately 455 kg more than 1981 BMW 525. 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 Jaguar XJ (525 Nm) has 310 more torque (in Nm) than 1981 BMW 525. (215 Nm). This means 2005 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 525. 2005 Jaguar XJ has automatic transmission and 1981 BMW 525 has manual transmission. 1981 BMW 525 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 525 | 2005 Jaguar XJ | |
| Make | BMW | Jaguar |
| Model | 525 | XJ |
| Year Released | 1981 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 4195 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 390 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 215 Nm | 525 Nm |
| Engine Bore Size | 86.1 mm | 86.1 mm |
| Engine Stroke Size | 71.6 mm | 90 mm |
| Engine Compression Ratio | 9.6:1 | 9.1:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1280 kg | 1735 kg |
| Vehicle Length | 4780 mm | 5100 mm |
| Vehicle Width | 1810 mm | 1950 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2630 mm | 2920 mm |
| Fuel Consumption | 7.2 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 84 L |
