1950 Alfa Romeo GP 158 vs. 1955 Armstrong Siddeley Sapphire
To start off, 1955 Armstrong Siddeley Sapphire is newer by 5 year(s). Which means there will be less support and parts availability for 1950 Alfa Romeo GP 158. In addition, the cost of maintenance, including insurance, on 1950 Alfa Romeo GP 158 would be higher. At 3,435 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1950 Alfa Romeo GP 158 (346 HP @ 8500 RPM) has 221 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP @ 4700 RPM). In normal driving conditions, 1950 Alfa Romeo GP 158 should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 1130 kg more than 1950 Alfa Romeo GP 158.
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:
| 1950 Alfa Romeo GP 158 | 1955 Armstrong Siddeley Sapphire | |
| Make | Alfa Romeo | Armstrong Siddeley |
| Model | GP 158 | Sapphire |
| Year Released | 1950 | 1955 |
| Engine Size | 1479 cc | 3435 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 346 HP | 125 HP |
| Engine RPM | 8500 RPM | 4700 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 700 kg | 1830 kg |
| Wheelbase Size | 2510 mm | 3380 mm |
