1955 Armstrong Siddeley Sapphire vs. 2013 Jaguar XJ
To start off, 2013 Jaguar XJ is newer by 58 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 5,000 cc (4 cylinders), 2013 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2013 Jaguar XJ (464 HP @ 6500 RPM) has 339 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP @ 4700 RPM) In normal driving conditions, 2013 Jaguar XJ should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2013 Jaguar XJ weights approximately 40 kg more than 1955 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Jaguar XJ is all wheel drive (AWD), it will have significant more traction and grip than 1955 Armstrong Siddeley Sapphire. In wet, icy, snow, or gravel driving conditions, 2013 Jaguar XJ will offer significantly more control. 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, 2013 Jaguar XJ (575 Nm @ 5000 RPM) has 328 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (247 Nm @ 2000 RPM). This means 2013 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 2013 Jaguar XJ | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XJ |
| Year Released | 1955 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3435 cc | 5000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | W |
| Horse Power | 125 HP | 464 HP |
| Engine RPM | 4700 RPM | 6500 RPM |
| Torque | 247 Nm | 575 Nm |
| Torque RPM | 2000 RPM | 5000 RPM |
| Engine Bore Size | 90 mm | 92 mm |
| Engine Stroke Size | 90 mm | 93 mm |
| Engine Compression Ratio | 7.0:1 | 9.5:1 |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1870 kg |
| Vehicle Length | 5390 mm | 5252 mm |
| Vehicle Width | 1840 mm | 2105 mm |
| Vehicle Height | 1680 mm | 1456 mm |
| Wheelbase Size | 3380 mm | 3157 mm |
