1952 Alfa Romeo AR 51 vs. 1947 Riley RM A
To start off, 1952 Alfa Romeo AR 51 is newer by 5 year(s). Which means there will be less support and parts availability for 1947 Riley RM A. In addition, the cost of maintenance, including insurance, on 1947 Riley RM A would be higher. At 1,884 cc (4 cylinders), 1952 Alfa Romeo AR 51 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 1952 Alfa Romeo AR 51 weights approximately 15 kg more than 1947 Riley RM A.
Because 1952 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 1947 Riley RM A. 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 | 1947 Riley RM A | |
| Make | Alfa Romeo | Riley |
| Model | AR 51 | RM A |
| Year Released | 1952 | 1947 |
| Engine Size | 1884 cc | 1496 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 63 HP | 0 HP |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1250 kg | 1235 kg |
| Vehicle Length | 3530 mm | 4560 mm |
| Vehicle Width | 1580 mm | 1620 mm |
| Vehicle Height | 1830 mm | 1550 mm |
| Wheelbase Size | 2210 mm | 2870 mm |
