1981 Reliant Kitten vs. 1956 Rover P4
To start off, 1981 Reliant Kitten is newer by 25 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 2,636 cc (6 cylinders), 1956 Rover P4 is equipped with a bigger engine. In terms of performance, 1956 Rover P4 (108 HP @ 4250 RPM) has 68 more horse power than 1981 Reliant Kitten. (40 HP @ 5500 RPM) In normal driving conditions, 1956 Rover P4 should accelerate faster than 1981 Reliant Kitten. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 908 kg more than 1981 Reliant Kitten. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1956 Rover P4 (206 Nm @ 2500 RPM) has 143 more torque (in Nm) than 1981 Reliant Kitten. (63 Nm @ 3500 RPM). This means 1956 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Reliant Kitten.
Compare all specifications:
| 1981 Reliant Kitten | 1956 Rover P4 | |
| Make | Reliant | Rover |
| Model | Kitten | P4 |
| Year Released | 1981 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 848 cc | 2636 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 40 HP | 108 HP |
| Engine RPM | 5500 RPM | 4250 RPM |
| Torque | 63 Nm | 206 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 62.5 mm | 73 mm |
| Engine Stroke Size | 69.1 mm | 105 mm |
| Engine Compression Ratio | 9.5:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 540 kg | 1448 kg |
| Vehicle Length | 3330 mm | 4530 mm |
| Vehicle Width | 1430 mm | 1670 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2150 mm | 2830 mm |
| Fuel Tank Capacity | 27 L | 52 L |
