1958 Armstrong Siddeley Star Sapphire vs. 1975 Pontiac Firebird
To start off, 1975 Pontiac Firebird is newer by 17 year(s). Which means there will be less support and parts availability for 1958 Armstrong Siddeley Star Sapphire. In addition, the cost of maintenance, including insurance, on 1958 Armstrong Siddeley Star 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 13 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1975 Pontiac Firebird should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 193 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 54 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1975 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 1975 Pontiac Firebird | |
| Make | Armstrong Siddeley | Pontiac |
| Model | Star Sapphire | Firebird |
| Year Released | 1958 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 5792 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 158 HP |
| Engine RPM | 4250 RPM | 4400 RPM |
| Torque | 312 Nm | 366 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1778 kg | 1585 kg |
| Vehicle Length | 4940 mm | 4880 mm |
| Vehicle Width | 1890 mm | 1870 mm |
| Vehicle Height | 1580 mm | 1290 mm |
| Wheelbase Size | 2900 mm | 2750 mm |
