1963 Alfa Romeo Spider vs. 1949 Rover P4
To start off, 1963 Alfa Romeo Spider is newer by 14 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 2,580 cc (6 cylinders), 1963 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1963 Alfa Romeo Spider (163 HP @ 5900 RPM) has 89 more horse power than 1949 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 1963 Alfa Romeo Spider should accelerate faster than 1949 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1949 Rover P4 weights approximately 121 kg more than 1963 Alfa Romeo Spider.
Let's talk about torque, 1963 Alfa Romeo Spider (220 Nm @ 4000 RPM) has 70 more torque (in Nm) than 1949 Rover P4. (150 Nm @ 2500 RPM). This means 1963 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1949 Rover P4.
Compare all specifications:
| 1963 Alfa Romeo Spider | 1949 Rover P4 | |
| Make | Alfa Romeo | Rover |
| Model | Spider | P4 |
| Year Released | 1963 | 1949 |
| Engine Position | Front | Front |
| Engine Size | 2580 cc | 2102 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 163 HP | 74 HP |
| Engine RPM | 5900 RPM | 4200 RPM |
| Torque | 220 Nm | 150 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 65.2 mm |
| Engine Stroke Size | 79.6 mm | 105 mm |
| Engine Compression Ratio | 9.2:1 | 7.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1451 kg |
| Vehicle Length | 4510 mm | 4590 mm |
| Vehicle Width | 1610 mm | 1680 mm |
| Vehicle Height | 1390 mm | 1620 mm |
| Wheelbase Size | 2510 mm | 2830 mm |
| Fuel Tank Capacity | 52 L | 52 L |
