1957 Armstrong Siddeley Sapphire vs. 1992 Jaguar XJS
To start off, 1992 Jaguar XJS is newer by 35 year(s). Which means there will be less support and parts availability for 1957 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1957 Armstrong Siddeley Sapphire would be higher. At 3,978 cc (6 cylinders), 1992 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1992 Jaguar XJS (220 HP @ 4750 RPM) has 135 more horse power than 1957 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1992 Jaguar XJS should accelerate faster than 1957 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1992 Jaguar XJS weights approximately 370 kg more than 1957 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, 1992 Jaguar XJS (377 Nm @ 3650 RPM) has 216 more torque (in Nm) than 1957 Armstrong Siddeley Sapphire. (161 Nm @ 1750 RPM). This means 1992 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1957 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1957 Armstrong Siddeley Sapphire | 1992 Jaguar XJS | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XJS |
| Year Released | 1957 | 1992 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 3978 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 220 HP |
| Engine RPM | 4400 RPM | 4750 RPM |
| Torque | 161 Nm | 377 Nm |
| Torque RPM | 1750 RPM | 3650 RPM |
| Engine Bore Size | 70 mm | 91 mm |
| Engine Stroke Size | 100 mm | 102 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1730 kg |
| Vehicle Length | 4580 mm | 4880 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1270 mm |
| Wheelbase Size | 2900 mm | 2600 mm |
| Fuel Tank Capacity | 72 L | 82 L |
