1954 Alfa Romeo Giulietta vs. 1955 Armstrong Siddeley Sapphire
To start off, 1955 Armstrong Siddeley Sapphire is newer by 1 year(s). Which means there will be less support and parts availability for 1954 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1954 Alfa Romeo Giulietta would be higher. At 3,435 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1955 Armstrong Siddeley Sapphire (125 HP @ 4700 RPM) has 49 more horse power than 1954 Alfa Romeo Giulietta. (76 HP @ 6300 RPM) In normal driving conditions, 1955 Armstrong Siddeley Sapphire should accelerate faster than 1954 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 1010 kg more than 1954 Alfa Romeo Giulietta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1955 Armstrong Siddeley Sapphire (247 Nm @ 2000 RPM) has 135 more torque (in Nm) than 1954 Alfa Romeo Giulietta. (112 Nm @ 4250 RPM). This means 1955 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1954 Alfa Romeo Giulietta.
Compare all specifications:
| 1954 Alfa Romeo Giulietta | 1955 Armstrong Siddeley Sapphire | |
| Make | Alfa Romeo | Armstrong Siddeley |
| Model | Giulietta | Sapphire |
| Year Released | 1954 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 1290 cc | 3435 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 76 HP | 125 HP |
| Engine RPM | 6300 RPM | 4700 RPM |
| Torque | 112 Nm | 247 Nm |
| Torque RPM | 4250 RPM | 2000 RPM |
| Engine Bore Size | 74 mm | 90 mm |
| Engine Stroke Size | 75 mm | 90 mm |
| Engine Compression Ratio | 8.0:1 | 7.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 820 kg | 1830 kg |
| Vehicle Length | 3990 mm | 5390 mm |
| Vehicle Width | 1540 mm | 1840 mm |
| Vehicle Height | 1330 mm | 1680 mm |
| Wheelbase Size | 2390 mm | 3380 mm |
| Fuel Tank Capacity | 53 L | 72 L |
