1964 Innocenti J4 vs. 1946 Rover P2
To start off, 1964 Innocenti J4 is newer by 18 year(s). Which means there will be less support and parts availability for 1946 Rover P2. In addition, the cost of maintenance, including insurance, on 1946 Rover P2 would be higher. At 1,577 cc (6 cylinders), 1946 Rover P2 is equipped with a bigger engine. In terms of performance, 1964 Innocenti J4 (57 HP @ 5500 RPM) has 10 more horse power than 1946 Rover P2. (47 HP @ 4600 RPM). In normal driving conditions, 1964 Innocenti J4 should accelerate faster than 1946 Rover P2. With that said, vehicle weight also plays an important factor in acceleration. 1946 Rover P2 weights approximately 570 kg more than 1964 Innocenti J4.
Compare all specifications:
| 1964 Innocenti J4 | 1946 Rover P2 | |
| Make | Innocenti | Rover |
| Model | J4 | P2 |
| Year Released | 1964 | 1946 |
| Engine Size | 1098 cc | 1577 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 57 HP | 47 HP |
| Engine RPM | 5500 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 850 kg | 1420 kg |
