1981 Reliant Kitten vs. 1963 Sunbeam Alpine
To start off, 1981 Reliant Kitten is newer by 18 year(s). Which means there will be less support and parts availability for 1963 Sunbeam Alpine. In addition, the cost of maintenance, including insurance, on 1963 Sunbeam Alpine would be higher. At 1,592 cc (4 cylinders), 1963 Sunbeam Alpine is equipped with a bigger engine. In terms of performance, 1963 Sunbeam Alpine (81 HP @ 5200 RPM) has 41 more horse power than 1981 Reliant Kitten. (40 HP @ 5500 RPM) In normal driving conditions, 1963 Sunbeam Alpine should accelerate faster than 1981 Reliant Kitten. With that said, vehicle weight also plays an important factor in acceleration. 1963 Sunbeam Alpine weights approximately 490 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.
Let's talk about torque, 1963 Sunbeam Alpine (126 Nm @ 3600 RPM) has 63 more torque (in Nm) than 1981 Reliant Kitten. (63 Nm @ 3500 RPM). This means 1963 Sunbeam Alpine will have an easier job in driving up hills or pulling heavy equipment than 1981 Reliant Kitten.
Compare all specifications:
| 1981 Reliant Kitten | 1963 Sunbeam Alpine | |
| Make | Reliant | Sunbeam |
| Model | Kitten | Alpine |
| Year Released | 1981 | 1963 |
| Engine Position | Front | Front |
| Engine Size | 848 cc | 1592 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 40 HP | 81 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 63 Nm | 126 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 62.5 mm | 81.5 mm |
| Engine Stroke Size | 69.1 mm | 76.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 2 seats |
| Vehicle Weight | 540 kg | 1030 kg |
| Vehicle Length | 3330 mm | 3950 mm |
| Vehicle Width | 1430 mm | 1540 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2150 mm | 2190 mm |
| Fuel Tank Capacity | 27 L | 40 L |
