2004 BMW X5 vs. 1956 Rover P4
To start off, 2004 BMW X5 is newer by 48 year(s). Which means there will be less support and parts availability for 1956 Rover P4. In addition, the cost of maintenance, including insurance, on 1956 Rover P4 would be higher. At 2,978 cc (6 cylinders), 2004 BMW X5 is equipped with a bigger engine. In terms of performance, 2004 BMW X5 (228 HP @ 7400 RPM) has 120 more horse power than 1956 Rover P4. (108 HP @ 4250 RPM). In normal driving conditions, 2004 BMW X5 should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW X5 weights approximately 624 kg more than 1956 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1956 Rover P4. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 BMW X5 (290 Nm) has 84 more torque (in Nm) than 1956 Rover P4. (206 Nm). This means 2004 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1956 Rover P4.
Compare all specifications:
| 2004 BMW X5 | 1956 Rover P4 | |
| Make | BMW | Rover |
| Model | X5 | P4 |
| Year Released | 2004 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 2978 cc | 2638 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 108 HP |
| Engine RPM | 7400 RPM | 4250 RPM |
| Torque | 290 Nm | 206 Nm |
| Engine Bore Size | 84 mm | 73 mm |
| Engine Stroke Size | 90 mm | 105 mm |
| Engine Compression Ratio | 10.2:1 | 8.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2110 kg | 1486 kg |
| Vehicle Length | 4670 mm | 4530 mm |
| Vehicle Width | 1880 mm | 1670 mm |
| Vehicle Height | 1770 mm | 1320 mm |
| Wheelbase Size | 2940 mm | 2830 mm |
| Fuel Tank Capacity | 92 L | 52 L |
