1956 Armstrong Siddeley Sapphire vs. 1985 BMW M5
To start off, 1985 BMW M5 is newer by 29 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 3,453 cc (6 cylinders), 1985 BMW M5 is equipped with a bigger engine. In terms of performance, 1985 BMW M5 (256 HP @ 4800 RPM) has 171 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1985 BMW M5 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1985 BMW M5 weights approximately 140 kg more than 1956 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, 1985 BMW M5 (290 Nm @ 4500 RPM) has 130 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1985 BMW M5 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 | 1985 BMW M5 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | M5 |
| Year Released | 1956 | 1985 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 3453 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 256 HP |
| Engine RPM | 4400 RPM | 4800 RPM |
| Torque | 160 Nm | 290 Nm |
| Torque RPM | 1750 RPM | 4500 RPM |
| Engine Bore Size | 70 mm | 91.9 mm |
| Engine Stroke Size | 100 mm | 86.1 mm |
| Engine Compression Ratio | 7.5:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline |
| 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 | 1500 kg |
| Vehicle Length | 4580 mm | 4630 mm |
| Vehicle Width | 1730 mm | 1710 mm |
| Vehicle Height | 1570 mm | 1410 mm |
| Wheelbase Size | 2900 mm | 2580 mm |
