1955 Armstrong Siddeley Sapphire vs. 1990 BMW 518
To start off, 1990 BMW 518 is newer by 35 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, 1990 BMW 518 (113 HP @ 5500 RPM) has 28 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1990 BMW 518 should accelerate faster than 1955 Armstrong Siddeley Sapphire.
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, 1990 BMW 518 (161 Nm @ 4250 RPM) has 1 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1990 BMW 518 will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1990 BMW 518 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 518 |
| Year Released | 1955 | 1990 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1794 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 113 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 161 Nm |
| Torque RPM | 1750 RPM | 4250 RPM |
| Engine Bore Size | 70 mm | 84 mm |
| Engine Stroke Size | 100 mm | 81 mm |
| Engine Compression Ratio | 7.5:1 | 8.8:1 |
| 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 | 1360 kg |
| Vehicle Length | 4580 mm | 4730 mm |
| Vehicle Width | 1730 mm | 1760 mm |
| Vehicle Height | 1570 mm | 1420 mm |
| Wheelbase Size | 2900 mm | 2770 mm |
