1955 Armstrong Siddeley Sapphire vs. 1976 Opel Commodore
To start off, 1976 Opel Commodore is newer by 21 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 2,783 cc (6 cylinders), 1976 Opel Commodore is equipped with a bigger engine. In terms of performance, 1976 Opel Commodore (141 HP @ 5200 RPM) has 56 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1976 Opel Commodore 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 75 kg more than 1976 Opel Commodore.
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, 1976 Opel Commodore (216 Nm @ 3600 RPM) has 56 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1976 Opel Commodore will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1976 Opel Commodore | |
| Make | Armstrong Siddeley | Opel |
| Model | Sapphire | Commodore |
| Year Released | 1955 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 2783 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 141 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Torque | 160 Nm | 216 Nm |
| Torque RPM | 1750 RPM | 3600 RPM |
| Engine Bore Size | 70 mm | 92 mm |
| Engine Stroke Size | 100 mm | 69.8 mm |
| Engine Compression Ratio | 7.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1360 kg | 1285 kg |
| Vehicle Length | 4580 mm | 4620 mm |
| Vehicle Width | 1730 mm | 1730 mm |
| Vehicle Height | 1570 mm | 1430 mm |
| Wheelbase Size | 2900 mm | 2670 mm |
