1958 Armstrong Siddeley Star Sapphire vs. 1978 Bristol 412
To start off, 1978 Bristol 412 is newer by 20 year(s). Which means there will be less support and parts availability for 1958 Armstrong Siddeley Star Sapphire. In addition, the cost of maintenance, including insurance, on 1958 Armstrong Siddeley Star Sapphire would be higher. At 5,898 cc (8 cylinders), 1978 Bristol 412 is equipped with a bigger engine. In terms of performance, 1978 Bristol 412 (171 HP @ 4000 RPM) has 26 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1978 Bristol 412 should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 88 kg more than 1978 Bristol 412.
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, 1978 Bristol 412 (366 Nm @ 2000 RPM) has 54 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1978 Bristol 412 will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 1978 Bristol 412 | |
| Make | Armstrong Siddeley | Bristol |
| Model | Star Sapphire | 412 |
| Year Released | 1958 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 5898 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 171 HP |
| Engine RPM | 4250 RPM | 4000 RPM |
| Torque | 312 Nm | 366 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 97.1 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 90.9 mm |
| Engine Compression Ratio | 7.5:1 | 8.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1778 kg | 1690 kg |
| Vehicle Length | 4940 mm | 4950 mm |
| Vehicle Width | 1890 mm | 1780 mm |
| Vehicle Height | 1580 mm | 1450 mm |
| Wheelbase Size | 2900 mm | 2910 mm |
