1987 BMW 730 vs. 1981 Reliant Kitten
To start off, 1987 BMW 730 is newer by 6 year(s). Which means there will be less support and parts availability for 1981 Reliant Kitten. In addition, the cost of maintenance, including insurance, on 1981 Reliant Kitten would be higher. At 2,986 cc (6 cylinders), 1987 BMW 730 is equipped with a bigger engine. In terms of performance, 1987 BMW 730 (181 HP @ 5800 RPM) has 141 more horse power than 1981 Reliant Kitten. (40 HP @ 5500 RPM). In normal driving conditions, 1987 BMW 730 should accelerate faster than 1981 Reliant Kitten. With that said, vehicle weight also plays an important factor in acceleration. 1987 BMW 730 weights approximately 1062 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, 1987 BMW 730 (260 Nm @ 4000 RPM) has 197 more torque (in Nm) than 1981 Reliant Kitten. (63 Nm @ 3500 RPM). This means 1987 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1981 Reliant Kitten.
Compare all specifications:
| 1987 BMW 730 | 1981 Reliant Kitten | |
| Make | BMW | Reliant |
| Model | 730 | Kitten |
| Year Released | 1987 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 848 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 40 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 260 Nm | 63 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 89 mm | 62.5 mm |
| Engine Stroke Size | 80 mm | 69.1 mm |
| Engine Compression Ratio | 9.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1602 kg | 540 kg |
| Vehicle Length | 4920 mm | 3330 mm |
| Vehicle Width | 1850 mm | 1430 mm |
| Vehicle Height | 1420 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2150 mm |
| Fuel Tank Capacity | 90 L | 27 L |
