2005 BMW 525 vs. 1991 Rover 820
To start off, 2005 BMW 525 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Rover 820. In addition, the cost of maintenance, including insurance, on 1991 Rover 820 would be higher. At 2,494 cc (6 cylinders), 2005 BMW 525 is equipped with a bigger engine. In terms of performance, 2005 BMW 525 (189 HP @ 6000 RPM) has 9 more horse power than 1991 Rover 820. (180 HP @ 6000 RPM). In normal driving conditions, 2005 BMW 525 should accelerate faster than 1991 Rover 820. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 525 weights approximately 222 kg more than 1991 Rover 820. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 525 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 BMW 525. However, in wet, icy, snow, or gravel driving conditions, 1991 Rover 820, being front wheel drive (FWD), will offer much better control with better grip. 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 525 (245 Nm @ 3500 RPM) has 30 more torque (in Nm) than 1991 Rover 820. (215 Nm @ 2000 RPM). This means 2005 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 820.
Compare all specifications:
| 2005 BMW 525 | 1991 Rover 820 | |
| Make | BMW | Rover |
| Model | 525 | 820 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 189 HP | 180 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 215 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84.1 mm | 84.5 mm |
| Engine Stroke Size | 75 mm | 89 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1630 kg | 1408 kg |
| Vehicle Length | 4850 mm | 4890 mm |
| Vehicle Width | 1850 mm | 1740 mm |
| Vehicle Height | 1500 mm | 1400 mm |
| Wheelbase Size | 2730 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 68 L |
