1957 Armstrong Siddeley Sapphire vs. 1974 BMW Touring
To start off, 1974 BMW Touring is newer by 17 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, both vehicles can yield 85 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 1957 Armstrong Siddeley Sapphire weights approximately 330 kg more than 1974 BMW Touring.
Let's talk about torque, 1957 Armstrong Siddeley Sapphire (161 Nm @ 1750 RPM) has 31 more torque (in Nm) than 1974 BMW Touring. (130 Nm @ 3500 RPM). This means 1957 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW Touring.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1974 BMW Touring | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | Touring |
| Year Released | 1957 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1572 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 85 HP |
| Engine RPM | 4400 RPM | 5700 RPM |
| Torque | 161 Nm | 130 Nm |
| Torque RPM | 1750 RPM | 3500 RPM |
| Engine Bore Size | 70 mm | 84 mm |
| Engine Stroke Size | 100 mm | 71 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1360 kg | 1030 kg |
| Vehicle Length | 4580 mm | 4120 mm |
| Vehicle Width | 1750 mm | 1600 mm |
| Vehicle Height | 1570 mm | 1390 mm |
| Wheelbase Size | 2900 mm | 2510 mm |
