1955 Armstrong Siddeley Sapphire vs. 1989 Porsche 911
To start off, 1989 Porsche 911 is newer by 34 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 3,600 cc (6 cylinders), 1989 Porsche 911 is equipped with a bigger engine. In terms of performance, 1989 Porsche 911 (247 HP @ 6100 RPM) has 162 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1989 Porsche 911 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 10 kg more than 1989 Porsche 911.
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, 1989 Porsche 911 (310 Nm @ 4800 RPM) has 150 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1989 Porsche 911 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 | 1989 Porsche 911 | |
| Make | Armstrong Siddeley | Porsche |
| Model | Sapphire | 911 |
| Year Released | 1955 | 1989 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2309 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 247 HP |
| Engine RPM | 4400 RPM | 6100 RPM |
| Torque | 160 Nm | 310 Nm |
| Torque RPM | 1750 RPM | 4800 RPM |
| Engine Bore Size | 70 mm | 100 mm |
| Engine Stroke Size | 100 mm | 76.4 mm |
| Engine Compression Ratio | 7.5:1 | 11.3:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1350 kg |
| Vehicle Length | 4580 mm | 4300 mm |
| Vehicle Width | 1730 mm | 1660 mm |
| Vehicle Height | 1570 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2270 mm |
