1952 Alfa Romeo AR 51 vs. 1949 Rover P4
To start off, 1952 Alfa Romeo AR 51 is newer by 3 year(s). Which means there will be less support and parts availability for 1949 Rover P4. In addition, the cost of maintenance, including insurance, on 1949 Rover P4 would be higher. At 2,102 cc (6 cylinders), 1949 Rover P4 is equipped with a bigger engine. In terms of performance, 1949 Rover P4 (74 HP @ 4200 RPM) has 11 more horse power than 1952 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 1949 Rover P4 should accelerate faster than 1952 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 1949 Rover P4 weights approximately 201 kg more than 1952 Alfa Romeo AR 51. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1952 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 1949 Rover P4. In wet, icy, snow, or gravel driving conditions, 1952 Alfa Romeo AR 51 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.
Compare all specifications:
| 1952 Alfa Romeo AR 51 | 1949 Rover P4 | |
| Make | Alfa Romeo | Rover |
| Model | AR 51 | P4 |
| Year Released | 1952 | 1949 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 2102 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 63 HP | 74 HP |
| Engine RPM | 4400 RPM | 4200 RPM |
| Engine Bore Size | 82.6 mm | 65.2 mm |
| Engine Stroke Size | 88 mm | 105 mm |
| Engine Compression Ratio | 7.0:1 | 7.3:1 |
| Top Speed | 105 km/hour | 137 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1250 kg | 1451 kg |
| Vehicle Length | 3530 mm | 4590 mm |
| Vehicle Width | 1580 mm | 1680 mm |
| Vehicle Height | 1830 mm | 1620 mm |
| Wheelbase Size | 2210 mm | 2830 mm |
| Fuel Tank Capacity | 77 L | 52 L |
