1957 Armstrong Siddeley Sapphire vs. 1958 MG MGA
To start off, 1958 MG MGA is newer by 1 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, 1958 MG MGA (107 HP @ 6700 RPM) has 22 more horse power than 1957 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1958 MG MGA should accelerate faster than 1957 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1957 Armstrong Siddeley Sapphire weights approximately 460 kg more than 1958 MG MGA.
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, 1957 Armstrong Siddeley Sapphire (161 Nm @ 1750 RPM) has 20 more torque (in Nm) than 1958 MG MGA. (141 Nm @ 4500 RPM). This means 1957 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1958 MG MGA.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1958 MG MGA | |
| Make | Armstrong Siddeley | MG |
| Model | Sapphire | MGA |
| Year Released | 1957 | 1958 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1588 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 107 HP |
| Engine RPM | 4400 RPM | 6700 RPM |
| Torque | 161 Nm | 141 Nm |
| Torque RPM | 1750 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 900 kg |
| Vehicle Length | 4580 mm | 3970 mm |
| Vehicle Width | 1750 mm | 1460 mm |
| Vehicle Height | 1570 mm | 1280 mm |
| Wheelbase Size | 2900 mm | 2390 mm |
