1985 Alfa Romeo 90 vs. 1952 Rover P4
To start off, 1985 Alfa Romeo 90 is newer by 33 year(s). Which means there will be less support and parts availability for 1952 Rover P4. In addition, the cost of maintenance, including insurance, on 1952 Rover P4 would be higher. At 2,492 cc (6 cylinders), 1985 Alfa Romeo 90 is equipped with a bigger engine. In terms of performance, 1985 Alfa Romeo 90 (154 HP @ 5600 RPM) has 79 more horse power than 1952 Rover P4. (75 HP @ 4200 RPM). In normal driving conditions, 1985 Alfa Romeo 90 should accelerate faster than 1952 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1952 Rover P4 weights approximately 220 kg more than 1985 Alfa Romeo 90.
Let's talk about torque, 1985 Alfa Romeo 90 (214 Nm @ 4000 RPM) has 64 more torque (in Nm) than 1952 Rover P4. (150 Nm @ 2500 RPM). This means 1985 Alfa Romeo 90 will have an easier job in driving up hills or pulling heavy equipment than 1952 Rover P4.
Compare all specifications:
| 1985 Alfa Romeo 90 | 1952 Rover P4 | |
| Make | Alfa Romeo | Rover |
| Model | 90 | P4 |
| Year Released | 1985 | 1952 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2101 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 154 HP | 75 HP |
| Engine RPM | 5600 RPM | 4200 RPM |
| Torque | 214 Nm | 150 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 88 mm | 65.2 mm |
| Engine Stroke Size | 68.3 mm | 105 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1170 kg | 1390 kg |
| Vehicle Length | 4400 mm | 4590 mm |
| Vehicle Width | 1650 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1630 mm |
| Wheelbase Size | 2520 mm | 2830 mm |
