1981 Holden Commodore vs. 1955 Rover P4
To start off, 1981 Holden Commodore is newer by 26 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 4,142 cc (8 cylinders), 1981 Holden Commodore is equipped with a bigger engine. In terms of performance, 1981 Holden Commodore (134 HP @ 4200 RPM) has 55 more horse power than 1955 Rover P4. (79 HP @ 4500 RPM). In normal driving conditions, 1981 Holden Commodore should accelerate faster than 1955 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1955 Rover P4 weights approximately 50 kg more than 1981 Holden Commodore.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1981 Holden Commodore (270 Nm @ 2000 RPM) has 82 more torque (in Nm) than 1955 Rover P4. (188 Nm @ 1750 RPM). This means 1981 Holden Commodore will have an easier job in driving up hills or pulling heavy equipment than 1955 Rover P4. 1981 Holden Commodore has automatic transmission and 1955 Rover P4 has manual transmission. 1955 Rover P4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 Holden Commodore will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Holden Commodore | 1955 Rover P4 | |
| Make | Holden | Rover |
| Model | Commodore | P4 |
| Year Released | 1981 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 4142 cc | 2638 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 134 HP | 79 HP |
| Engine RPM | 4200 RPM | 4500 RPM |
| Torque | 270 Nm | 188 Nm |
| Torque RPM | 2000 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1350 kg | 1400 kg |
| Vehicle Length | 4710 mm | 4550 mm |
| Vehicle Width | 1730 mm | 1680 mm |
| Vehicle Height | 1370 mm | 1630 mm |
| Wheelbase Size | 2670 mm | 2830 mm |
