1956 Armstrong Siddeley Sapphire vs. 1998 BMW 318
To start off, 1998 BMW 318 is newer by 42 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1998 BMW 318 (115 HP @ 5500 RPM) has 30 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1998 BMW 318 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 50 kg more than 1998 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, 1998 BMW 318 (180 Nm @ 3750 RPM) has 20 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1998 BMW 318 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1998 BMW 318 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 318 |
| Year Released | 1956 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 115 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 180 Nm |
| Torque RPM | 1750 RPM | 3750 RPM |
| Engine Bore Size | 70 mm | 84 mm |
| Engine Stroke Size | 100 mm | 81 mm |
| Engine Compression Ratio | 7.5:1 | 10.5:1 |
| 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 | 1310 kg |
| Vehicle Length | 4580 mm | 4480 mm |
| Vehicle Width | 1730 mm | 1750 mm |
| Vehicle Height | 1570 mm | 1420 mm |
| Wheelbase Size | 2900 mm | 2730 mm |
