1955 Armstrong Siddeley Sapphire vs. 1982 BMW 318
To start off, 1982 BMW 318 is newer by 27 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 2,309 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1982 BMW 318 (89 HP @ 5500 RPM) has 4 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1982 BMW 318 should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 340 kg more than 1982 BMW 318.
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, 1955 Armstrong Siddeley Sapphire (160 Nm @ 1750 RPM) has 20 more torque (in Nm) than 1982 BMW 318. (140 Nm @ 4000 RPM). This means 1955 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1982 BMW 318.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1982 BMW 318 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 318 |
| Year Released | 1955 | 1982 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1765 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 89 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 140 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 70 mm | 89 mm |
| Engine Stroke Size | 100 mm | 71 mm |
| Engine Compression Ratio | 7.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1360 kg | 1020 kg |
| Vehicle Length | 4580 mm | 4330 mm |
| Vehicle Width | 1730 mm | 1650 mm |
| Vehicle Height | 1570 mm | 1390 mm |
| Wheelbase Size | 2900 mm | 2580 mm |
