1975 Mazda 616 vs. 1955 Rover P4
To start off, 1975 Mazda 616 is newer by 20 year(s). Which means there will be less support and parts availability for 1955 Rover P4. In addition, the cost of maintenance, including insurance, on 1955 Rover P4 would be higher. At 2,230 cc (6 cylinders), 1955 Rover P4 is equipped with a bigger engine. In terms of performance, 1975 Mazda 616 (79 HP @ 5500 RPM) has 9 more horse power than 1955 Rover P4. (70 HP @ 4500 RPM). In normal driving conditions, 1975 Mazda 616 should accelerate faster than 1955 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1955 Rover P4 weights approximately 490 kg more than 1975 Mazda 616.
Let's talk about torque, 1955 Rover P4 (153 Nm @ 1750 RPM) has 29 more torque (in Nm) than 1975 Mazda 616. (124 Nm @ 3500 RPM). This means 1955 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda 616.
Compare all specifications:
| 1975 Mazda 616 | 1955 Rover P4 | |
| Make | Mazda | Rover |
| Model | 616 | P4 |
| Year Released | 1975 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 1586 cc | 2230 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 79 HP | 70 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 124 Nm | 153 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 78 mm | 73.1 mm |
| Engine Stroke Size | 83 mm | 88.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 910 kg | 1400 kg |
| Vehicle Length | 4160 mm | 4540 mm |
| Vehicle Width | 1590 mm | 1680 mm |
| Vehicle Height | 1400 mm | 1620 mm |
| Wheelbase Size | 2480 mm | 2830 mm |
