1956 Armstrong Siddeley Sapphire vs. 2001 Westfield ZEI
To start off, 2001 Westfield ZEI is newer by 45 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, 2001 Westfield ZEI (130 HP @ 6250 RPM) has 45 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2001 Westfield ZEI 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 640 kg more than 2001 Westfield ZEI.
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, 2001 Westfield ZEI (162 Nm @ 4250 RPM) has 2 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 2001 Westfield ZEI 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 | 2001 Westfield ZEI | |
| Make | Armstrong Siddeley | Westfield |
| Model | Sapphire | ZEI |
| Year Released | 1956 | 2001 |
| Engine Size | 2307 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 130 HP |
| Engine RPM | 4400 RPM | 6250 RPM |
| Torque | 160 Nm | 162 Nm |
| Torque RPM | 1750 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1360 kg | 720 kg |
| Vehicle Length | 4580 mm | 3550 mm |
| Vehicle Width | 1730 mm | 1570 mm |
| Vehicle Height | 1570 mm | 1060 mm |
| Wheelbase Size | 2900 mm | 2340 mm |
