1956 Armstrong Siddeley Sapphire vs. 1988 Jaguar XJS
To start off, 1988 Jaguar XJS is newer by 32 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 3,590 cc (6 cylinders), 1988 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1988 Jaguar XJS (217 HP @ 5300 RPM) has 132 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1988 Jaguar XJS should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1988 Jaguar XJS weights approximately 270 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, 1988 Jaguar XJS (331 Nm @ 4000 RPM) has 171 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1988 Jaguar XJS 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 | 1988 Jaguar XJS | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XJS |
| Year Released | 1956 | 1988 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 3590 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 217 HP |
| Engine RPM | 4400 RPM | 5300 RPM |
| Torque | 160 Nm | 331 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 70 mm | 91 mm |
| Engine Stroke Size | 100 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1630 kg |
| Vehicle Length | 4580 mm | 4880 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1270 mm |
| Wheelbase Size | 2900 mm | 2600 mm |
