2005 BMW X5 vs. 1955 Rover P4
To start off, 2005 BMW X5 is newer by 50 year(s). Which means there will be less support and parts availability for 1955 Rover P4. In addition, the cost of maintenance, including insurance, on 1955 Rover P4 would be higher. At 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (215 HP @ 4000 RPM) has 141 more horse power than 1955 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 2005 BMW X5 should accelerate faster than 1955 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 780 kg more than 1955 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1955 Rover P4. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 BMW X5 (520 Nm) has 370 more torque (in Nm) than 1955 Rover P4. (150 Nm). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1955 Rover P4.
Compare all specifications:
| 2005 BMW X5 | 1955 Rover P4 | |
| Make | BMW | Rover |
| Model | X5 | P4 |
| Year Released | 2005 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 2102 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 74 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 520 Nm | 150 Nm |
| Engine Bore Size | 84 mm | 65.2 mm |
| Engine Stroke Size | 90 mm | 105 mm |
| Engine Compression Ratio | 18.0:1 | 7.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2170 kg | 1390 kg |
| Vehicle Length | 4670 mm | 4590 mm |
| Vehicle Width | 1880 mm | 1670 mm |
| Vehicle Height | 1720 mm | 1620 mm |
| Wheelbase Size | 2830 mm | 2830 mm |
| Fuel Tank Capacity | 93 L | 52 L |
