1956 Armstrong Siddeley Sapphire vs. 1977 Triumph TR7
To start off, 1977 Triumph TR7 is newer by 21 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, 1977 Triumph TR7 (104 HP @ 5500 RPM) has 19 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1977 Triumph TR7 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 315 kg more than 1977 Triumph TR7.
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, 1977 Triumph TR7 (161 Nm @ 3500 RPM) has 1 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1977 Triumph TR7 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1977 Triumph TR7 | |
| Make | Armstrong Siddeley | Triumph |
| Model | Sapphire | TR7 |
| Year Released | 1956 | 1977 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 1996 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 104 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 161 Nm |
| Torque RPM | 1750 RPM | 3500 RPM |
| Engine Bore Size | 70 mm | 90.3 mm |
| Engine Stroke Size | 100 mm | 78 mm |
| Engine Compression Ratio | 7.5:1 | 9.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1045 kg |
| Vehicle Length | 4580 mm | 4070 mm |
| Vehicle Width | 1730 mm | 1690 mm |
| Vehicle Height | 1570 mm | 1270 mm |
| Wheelbase Size | 2900 mm | 2170 mm |
