1967 Alvis TF vs. 1955 Armstrong Siddeley Sapphire
To start off, 1967 Alvis TF is newer by 12 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 3,435 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1967 Alvis TF (150 HP @ 4750 RPM) has 25 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP @ 4700 RPM). In normal driving conditions, 1967 Alvis TF 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 276 kg more than 1967 Alvis TF.
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, both vehicles can yield 247 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1967 Alvis TF | 1955 Armstrong Siddeley Sapphire | |
| Make | Alvis | Armstrong Siddeley |
| Model | TF | Sapphire |
| Year Released | 1967 | 1955 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3435 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 150 HP | 125 HP |
| Engine RPM | 4750 RPM | 4700 RPM |
| Torque | 247 Nm | 247 Nm |
| Torque RPM | 3750 RPM | 2000 RPM |
| Engine Compression Ratio | 9.0:1 | 7.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1554 kg | 1830 kg |
| Vehicle Length | 4810 mm | 5390 mm |
| Vehicle Width | 1680 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1680 mm |
| Wheelbase Size | 2840 mm | 3380 mm |
| Fuel Tank Capacity | 64 L | 72 L |
