1956 Armstrong Siddeley Sapphire vs. 1970 AC 428
To start off, 1970 AC 428 is newer by 14 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 7,003 cc (8 cylinders), 1970 AC 428 is equipped with a bigger engine. In terms of performance, 1970 AC 428 (298 HP @ 4600 RPM) has 213 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1970 AC 428 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1970 AC 428 weights approximately 70 kg more than 1956 Armstrong Siddeley Sapphire. 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, 1970 AC 428 (640 Nm @ 2800 RPM) has 480 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1970 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire. 1970 AC 428 has automatic transmission and 1956 Armstrong Siddeley Sapphire has manual transmission. 1956 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1970 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1970 AC 428 | |
| Make | Armstrong Siddeley | AC |
| Model | Sapphire | 428 |
| Year Released | 1956 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 7003 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 298 HP |
| Engine RPM | 4400 RPM | 4600 RPM |
| Torque | 160 Nm | 640 Nm |
| Torque RPM | 1750 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1430 kg |
| Vehicle Length | 4580 mm | 4430 mm |
| Vehicle Width | 1730 mm | 1710 mm |
| Vehicle Height | 1570 mm | 1310 mm |
| Wheelbase Size | 2900 mm | 2450 mm |
