1956 Armstrong Siddeley Sapphire vs. 1975 BMW 315
To start off, 1975 BMW 315 is newer by 19 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 2,290 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1956 Armstrong Siddeley Sapphire (118 HP @ 5000 RPM) has 43 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM). In normal driving conditions, 1956 Armstrong Siddeley Sapphire should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 640 kg more than 1975 BMW 315. 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, 1956 Armstrong Siddeley Sapphire (189 Nm @ 3500 RPM) has 79 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 1956 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1975 BMW 315 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | 315 |
| Year Released | 1956 | 1975 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2290 cc | 1574 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 118 HP | 75 HP |
| Engine RPM | 5000 RPM | 5800 RPM |
| Torque | 189 Nm | 110 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 1010 kg |
| Vehicle Length | 4910 mm | 4360 mm |
| Vehicle Width | 1840 mm | 1620 mm |
| Vehicle Height | 1670 mm | 1390 mm |
| Wheelbase Size | 2900 mm | 2510 mm |
