2007 BMW X5 vs. 1991 Rover 820
To start off, 2007 BMW X5 is newer by 16 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 4,799 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (350 HP @ 6300 RPM) has 170 more horse power than 1991 Rover 820. (180 HP @ 6000 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 1991 Rover 820. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 792 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 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Rover 820. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 will offer significantly more control. 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, 2007 BMW X5 (476 Nm @ 3400 RPM) has 261 more torque (in Nm) than 1991 Rover 820. (215 Nm @ 2000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 820. 2007 BMW X5 has automatic transmission and 1991 Rover 820 has manual transmission. 1991 Rover 820 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 1991 Rover 820 | |
| Make | BMW | Rover |
| Model | X5 | 820 |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 350 HP | 180 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 476 Nm | 215 Nm |
| Torque RPM | 3400 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 84.5 mm |
| Engine Stroke Size | 88.3 mm | 89 mm |
| Top Speed | 246 km/hour | 217 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2200 kg | 1408 kg |
| Vehicle Length | 4860 mm | 4890 mm |
| Vehicle Width | 1940 mm | 1740 mm |
| Vehicle Height | 1770 mm | 1400 mm |
| Wheelbase Size | 2940 mm | 2780 mm |
| Fuel Tank Capacity | 85 L | 68 L |
