1971 BMW Touring vs. 1955 Rover P4
To start off, 1971 BMW Touring is newer by 16 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 2,102 cc (6 cylinders), 1955 Rover P4 is equipped with a bigger engine. In terms of performance, 1971 BMW Touring (85 HP @ 5700 RPM) has 11 more horse power than 1955 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 1971 BMW Touring should accelerate faster than 1955 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1955 Rover P4 weights approximately 360 kg more than 1971 BMW Touring.
Let's talk about torque, 1955 Rover P4 (150 Nm) has 20 more torque (in Nm) than 1971 BMW Touring. (130 Nm). This means 1955 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 1971 BMW Touring.
Compare all specifications:
| 1971 BMW Touring | 1955 Rover P4 | |
| Make | BMW | Rover |
| Model | Touring | P4 |
| Year Released | 1971 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 2102 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 74 HP |
| Engine RPM | 5700 RPM | 4200 RPM |
| Torque | 130 Nm | 150 Nm |
| Engine Bore Size | 84.1 mm | 65.2 mm |
| Engine Stroke Size | 71 mm | 105 mm |
| Engine Compression Ratio | 8.6:1 | 7.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1390 kg |
| Vehicle Length | 4120 mm | 4590 mm |
| Vehicle Width | 1600 mm | 1670 mm |
| Vehicle Height | 1390 mm | 1620 mm |
| Wheelbase Size | 2510 mm | 2830 mm |
