1956 Armstrong Siddeley Sapphire vs. 1975 Pontiac Firebird
To start off, 1975 Pontiac Firebird is newer by 19 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 5,792 cc (8 cylinders), 1975 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1975 Pontiac Firebird (158 HP @ 4400 RPM) has 40 more horse power than 1956 Armstrong Siddeley Sapphire. (118 HP @ 5000 RPM) In normal driving conditions, 1975 Pontiac Firebird should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 65 kg more than 1975 Pontiac Firebird.
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, 1975 Pontiac Firebird (366 Nm @ 2000 RPM) has 177 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (189 Nm @ 3500 RPM). This means 1975 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1975 Pontiac Firebird | |
| Make | Armstrong Siddeley | Pontiac |
| Model | Sapphire | Firebird |
| Year Released | 1956 | 1975 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2290 cc | 5792 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 118 HP | 158 HP |
| Engine RPM | 5000 RPM | 4400 RPM |
| Torque | 189 Nm | 366 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 1585 kg |
| Vehicle Length | 4910 mm | 4880 mm |
| Vehicle Width | 1840 mm | 1870 mm |
| Vehicle Height | 1670 mm | 1290 mm |
| Wheelbase Size | 2900 mm | 2750 mm |
