1955 Armstrong Siddeley Sapphire vs. 1954 Morgan Plus 4
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 Morgan Plus 4. In addition, the cost of maintenance, including insurance, on 1954 Morgan Plus 4 would be higher. At 2,309 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1954 Morgan Plus 4 (96 HP @ 4800 RPM) has 11 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1954 Morgan Plus 4 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 520 kg more than 1954 Morgan Plus 4.
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, 1954 Morgan Plus 4 (166 Nm @ 3000 RPM) has 6 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1954 Morgan Plus 4 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 | 1954 Morgan Plus 4 | |
| Make | Armstrong Siddeley | Morgan |
| Model | Sapphire | Plus 4 |
| Year Released | 1955 | 1954 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 96 HP |
| Engine RPM | 4400 RPM | 4800 RPM |
| Torque | 160 Nm | 166 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 840 kg |
| Vehicle Length | 4580 mm | 3660 mm |
| Vehicle Width | 1730 mm | 1430 mm |
| Vehicle Height | 1570 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2440 mm |
