1957 Armstrong Siddeley Sapphire vs. 1972 Opel Manta
To start off, 1972 Opel Manta is newer by 15 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, 1957 Armstrong Siddeley Sapphire (85 HP @ 4400 RPM) has 26 more horse power than 1972 Opel Manta. (59 HP @ 5400 RPM). In normal driving conditions, 1957 Armstrong Siddeley Sapphire should accelerate faster than 1972 Opel Manta. With that said, vehicle weight also plays an important factor in acceleration. 1957 Armstrong Siddeley Sapphire weights approximately 430 kg more than 1972 Opel Manta. 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, 1957 Armstrong Siddeley Sapphire (161 Nm @ 1750 RPM) has 71 more torque (in Nm) than 1972 Opel Manta. (90 Nm @ 3000 RPM). This means 1957 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1972 Opel Manta.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1972 Opel Manta | |
| Make | Armstrong Siddeley | Opel |
| Model | Sapphire | Manta |
| Year Released | 1957 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 59 HP |
| Engine RPM | 4400 RPM | 5400 RPM |
| Torque | 161 Nm | 90 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Bore Size | 70 mm | 79 mm |
| Engine Stroke Size | 100 mm | 61 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1360 kg | 930 kg |
| Vehicle Length | 4580 mm | 4300 mm |
| Vehicle Width | 1750 mm | 1640 mm |
| Vehicle Height | 1570 mm | 1360 mm |
| Wheelbase Size | 2900 mm | 2440 mm |
