2009 BMW 525 vs. 1951 Rover P4
To start off, 2009 BMW 525 is newer by 58 year(s). Which means there will be less support and parts availability for 1951 Rover P4. In addition, the cost of maintenance, including insurance, on 1951 Rover P4 would be higher. At 2,497 cc (6 cylinders), 2009 BMW 525 is equipped with a bigger engine. In terms of performance, 2009 BMW 525 (215 HP @ 6500 RPM) has 140 more horse power than 1951 Rover P4. (75 HP @ 4200 RPM). In normal driving conditions, 2009 BMW 525 should accelerate faster than 1951 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 525 weights approximately 105 kg more than 1951 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2009 BMW 525 (250 Nm @ 2900 RPM) has 100 more torque (in Nm) than 1951 Rover P4. (150 Nm @ 2500 RPM). This means 2009 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1951 Rover P4.
Compare all specifications:
| 2009 BMW 525 | 1951 Rover P4 | |
| Make | BMW | Rover |
| Model | 525 | P4 |
| Year Released | 2009 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2103 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 75 HP |
| Engine RPM | 6500 RPM | 4200 RPM |
| Torque | 250 Nm | 150 Nm |
| Torque RPM | 2900 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 65.2 mm |
| Engine Stroke Size | 78.8 mm | 105 mm |
| Engine Compression Ratio | 11.0:1 | 7.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1390 kg |
| Vehicle Length | 4850 mm | 4590 mm |
| Vehicle Width | 1470 mm | 1670 mm |
| Vehicle Height | 1850 mm | 1620 mm |
| Wheelbase Size | 2890 mm | 2830 mm |
| Fuel Tank Capacity | 70 L | 52 L |
