1999 BMW X5 vs. 1971 Rover 3.5 Litre
To start off, 1999 BMW X5 is newer by 28 year(s). Which means there will be less support and parts availability for 1971 Rover 3.5 Litre. In addition, the cost of maintenance, including insurance, on 1971 Rover 3.5 Litre would be higher. At 3,532 cc (8 cylinders), 1971 Rover 3.5 Litre is equipped with a bigger engine. In terms of performance, 1999 BMW X5 (190 HP @ 5300 RPM) has 42 more horse power than 1971 Rover 3.5 Litre. (148 HP @ 5000 RPM). In normal driving conditions, 1999 BMW X5 should accelerate faster than 1971 Rover 3.5 Litre. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW X5 weights approximately 332 kg more than 1971 Rover 3.5 Litre. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Rover 3.5 Litre. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 BMW X5 (281 Nm @ 3950 RPM) has 5 more torque (in Nm) than 1971 Rover 3.5 Litre. (276 Nm @ 2600 RPM). This means 1999 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1971 Rover 3.5 Litre. 1971 Rover 3.5 Litre has automatic transmission and 1999 BMW X5 has manual transmission. 1999 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Rover 3.5 Litre will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 BMW X5 | 1971 Rover 3.5 Litre | |
| Make | BMW | Rover |
| Model | X5 | 3.5 Litre |
| Year Released | 1999 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 3532 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 190 HP | 148 HP |
| Engine RPM | 5300 RPM | 5000 RPM |
| Torque | 281 Nm | 276 Nm |
| Torque RPM | 3950 RPM | 2600 RPM |
| Engine Bore Size | 84.1 mm | 88.9 mm |
| Engine Stroke Size | 84.1 mm | 71.1 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1970 kg | 1638 kg |
| Vehicle Length | 4670 mm | 4750 mm |
| Vehicle Width | 1880 mm | 1790 mm |
| Vehicle Height | 1710 mm | 1550 mm |
| Wheelbase Size | 2830 mm | 2820 mm |
