1957 Armstrong Siddeley Sapphire vs. 1990 BMW 520
To start off, 1990 BMW 520 is newer by 33 year(s). Which means there will be less support and parts availability for 1957 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1957 Armstrong Siddeley Sapphire would be higher. At 2,309 cc (6 cylinders), 1957 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1990 BMW 520 (145 HP @ 5900 RPM) has 60 more horse power than 1957 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1990 BMW 520 should accelerate faster than 1957 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1990 BMW 520 weights approximately 182 kg more than 1957 Armstrong Siddeley Sapphire. 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, 1990 BMW 520 (186 Nm @ 4700 RPM) has 25 more torque (in Nm) than 1957 Armstrong Siddeley Sapphire. (161 Nm @ 1750 RPM). This means 1990 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1957 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1990 BMW 520 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 520 |
| Year Released | 1957 | 1990 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 145 HP |
| Engine RPM | 4400 RPM | 5900 RPM |
| Torque | 161 Nm | 186 Nm |
| Torque RPM | 1750 RPM | 4700 RPM |
| Engine Bore Size | 70 mm | 80 mm |
| Engine Stroke Size | 100 mm | 66 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1360 kg | 1542 kg |
| Vehicle Length | 4580 mm | 4730 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1570 mm | 1420 mm |
| Wheelbase Size | 2900 mm | 2770 mm |
