1984 Audi 90 vs. 1956 Rover P4
To start off, 1984 Audi 90 is newer by 28 year(s). Which means there will be less support and parts availability for 1956 Rover P4. In addition, the cost of maintenance, including insurance, on 1956 Rover P4 would be higher. At 1,997 cc (4 cylinders), 1956 Rover P4 is equipped with a bigger engine. In terms of performance, 1984 Audi 90 (114 HP @ 5700 RPM) has 63 more horse power than 1956 Rover P4. (51 HP @ 4000 RPM). In normal driving conditions, 1984 Audi 90 should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 324 kg more than 1984 Audi 90.
Let's talk about torque, 1984 Audi 90 (168 Nm @ 3200 RPM) has 30 more torque (in Nm) than 1956 Rover P4. (138 Nm @ 2000 RPM). This means 1984 Audi 90 will have an easier job in driving up hills or pulling heavy equipment than 1956 Rover P4.
Compare all specifications:
| 1984 Audi 90 | 1956 Rover P4 | |
| Make | Audi | Rover |
| Model | 90 | P4 |
| Year Released | 1984 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 1997 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 51 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 168 Nm | 138 Nm |
| Torque RPM | 3200 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1056 kg | 1380 kg |
| Vehicle Length | 4470 mm | 4550 mm |
| Vehicle Width | 1690 mm | 1680 mm |
| Vehicle Height | 1370 mm | 1620 mm |
| Wheelbase Size | 2550 mm | 2830 mm |
