1956 Armstrong Siddeley Sapphire vs. 1983 BMW 725
To start off, 1983 BMW 725 is newer by 27 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 2,495 cc (6 cylinders), 1983 BMW 725 is equipped with a bigger engine. In terms of performance, 1983 BMW 725 (148 HP @ 5500 RPM) has 63 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1983 BMW 725 should accelerate faster than 1956 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, 1983 BMW 725 (215 Nm @ 4000 RPM) has 55 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1983 BMW 725 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 | 1983 BMW 725 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 725 |
| Year Released | 1956 | 1983 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 148 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 215 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Compression Ratio | 7.5:1 | 9.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4580 mm | 4870 mm |
| Vehicle Width | 1730 mm | 1810 mm |
| Vehicle Height | 1570 mm | 1440 mm |
| Wheelbase Size | 2900 mm | 2810 mm |
