1966 Alfa Romeo Giulia vs. 1956 Armstrong Siddeley Sapphire
To start off, 1966 Alfa Romeo Giulia is newer by 10 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 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo Giulia (105 HP @ 6200 RPM) has 20 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM). In normal driving conditions, 1966 Alfa Romeo Giulia 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 388 kg more than 1966 Alfa Romeo Giulia.
Let's talk about torque, 1956 Armstrong Siddeley Sapphire (160 Nm @ 1750 RPM) has 27 more torque (in Nm) than 1966 Alfa Romeo Giulia. (133 Nm @ 4500 RPM). This means 1956 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1966 Alfa Romeo Giulia.
Compare all specifications:
| 1966 Alfa Romeo Giulia | 1956 Armstrong Siddeley Sapphire | |
| Make | Alfa Romeo | Armstrong Siddeley |
| Model | Giulia | Sapphire |
| Year Released | 1966 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 2307 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 105 HP | 85 HP |
| Engine RPM | 6200 RPM | 4400 RPM |
| Torque | 133 Nm | 160 Nm |
| Torque RPM | 4500 RPM | 1750 RPM |
| Engine Bore Size | 78 mm | 70 mm |
| Engine Stroke Size | 82 mm | 100 mm |
| Engine Compression Ratio | 9.2:1 | 7.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 972 kg | 1360 kg |
| Vehicle Length | 4130 mm | 4580 mm |
| Vehicle Width | 1670 mm | 1730 mm |
| Vehicle Height | 1250 mm | 1570 mm |
| Wheelbase Size | 2260 mm | 2900 mm |
