1966 Alfa Romeo Giulia vs. 1955 Armstrong Siddeley Sapphire
To start off, 1966 Alfa Romeo Giulia is newer by 11 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 2,309 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo Giulia (163 HP @ 7500 RPM) has 78 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM). In normal driving conditions, 1966 Alfa Romeo Giulia 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 730 kg more than 1966 Alfa Romeo Giulia.
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, 1966 Alfa Romeo Giulia (220 Nm @ 4000 RPM) has 60 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1966 Alfa Romeo Giulia will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1966 Alfa Romeo Giulia | 1955 Armstrong Siddeley Sapphire | |
| Make | Alfa Romeo | Armstrong Siddeley |
| Model | Giulia | Sapphire |
| Year Released | 1966 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 2309 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 163 HP | 85 HP |
| Engine RPM | 7500 RPM | 4400 RPM |
| Torque | 220 Nm | 160 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Engine Bore Size | 78.1 mm | 70 mm |
| Engine Stroke Size | 82 mm | 100 mm |
| Engine Compression Ratio | 9.7:1 | 7.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 630 kg | 1360 kg |
| Vehicle Length | 3690 mm | 4580 mm |
| Vehicle Width | 1610 mm | 1730 mm |
| Vehicle Height | 1030 mm | 1570 mm |
| Wheelbase Size | 2210 mm | 2900 mm |
