1956 Armstrong Siddeley Sapphire vs. 1970 Pontiac Firebird
To start off, 1970 Pontiac Firebird is newer by 14 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 7,462 cc (8 cylinders), 1970 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1970 Pontiac Firebird (296 HP @ 4000 RPM) has 211 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1970 Pontiac Firebird should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1970 Pontiac Firebird weights approximately 390 kg more than 1956 Armstrong Siddeley Sapphire. 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, 1970 Pontiac Firebird (563 Nm @ 3200 RPM) has 403 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1970 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 | 1970 Pontiac Firebird | |
| Make | Armstrong Siddeley | Pontiac |
| Model | Sapphire | Firebird |
| Year Released | 1956 | 1970 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 7462 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 296 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 160 Nm | 563 Nm |
| Torque RPM | 1750 RPM | 3200 RPM |
| Engine Bore Size | 70 mm | 105.4 mm |
| Engine Stroke Size | 100 mm | 106.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1750 kg |
| Vehicle Length | 4580 mm | 4870 mm |
| Vehicle Width | 1730 mm | 1870 mm |
| Vehicle Height | 1570 mm | 1290 mm |
| Wheelbase Size | 2900 mm | 2750 mm |
