1955 Armstrong Siddeley Sapphire vs. 1957 Porsche 550 A
To start off, 1957 Porsche 550 A is newer by 2 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 3,435 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1955 Armstrong Siddeley Sapphire (125 HP @ 4700 RPM) has 17 more horse power than 1957 Porsche 550 A. (108 HP @ 7200 RPM). In normal driving conditions, 1955 Armstrong Siddeley Sapphire should accelerate faster than 1957 Porsche 550 A. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 1224 kg more than 1957 Porsche 550 A. 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.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1957 Porsche 550 A | |
| Make | Armstrong Siddeley | Porsche |
| Model | Sapphire | 550 A |
| Year Released | 1955 | 1957 |
| Engine Position | Front | Rear |
| Engine Size | 3435 cc | 1498 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 125 HP | 108 HP |
| Engine RPM | 4700 RPM | 7200 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1830 kg | 606 kg |
| Vehicle Length | 5390 mm | 3960 mm |
| Vehicle Width | 1840 mm | 1680 mm |
| Vehicle Height | 1680 mm | 1230 mm |
| Wheelbase Size | 3380 mm | 2110 mm |
