1956 Armstrong Siddeley Sapphire vs. 1973 Porsche 911
To start off, 1973 Porsche 911 is newer by 17 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 2,687 cc (6 cylinders), 1973 Porsche 911 is equipped with a bigger engine. In terms of performance, 1973 Porsche 911 (208 HP @ 6300 RPM) has 123 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1973 Porsche 911 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 410 kg more than 1973 Porsche 911.
Let's talk about torque, 1973 Porsche 911 (260 Nm @ 5100 RPM) has 100 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1973 Porsche 911 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 | 1973 Porsche 911 | |
| Make | Armstrong Siddeley | Porsche |
| Model | Sapphire | 911 |
| Year Released | 1956 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2307 cc | 2687 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 85 HP | 208 HP |
| Engine RPM | 4400 RPM | 6300 RPM |
| Torque | 160 Nm | 260 Nm |
| Torque RPM | 1750 RPM | 5100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 950 kg |
| Vehicle Length | 4580 mm | 4110 mm |
| Vehicle Width | 1730 mm | 1660 mm |
| Vehicle Height | 1570 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2280 mm |
