1955 Armstrong Siddeley Sapphire vs. 2009 Jaguar XJ
To start off, 2009 Jaguar XJ is newer by 54 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 3,435 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 2009 Jaguar XJ (235 HP @ 6800 RPM) has 110 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP @ 4700 RPM) In normal driving conditions, 2009 Jaguar XJ should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 216 kg more than 2009 Jaguar XJ.
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, 2009 Jaguar XJ (293 Nm @ 4100 RPM) has 46 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (247 Nm @ 2000 RPM). This means 2009 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire. 2009 Jaguar XJ has automatic transmission and 1955 Armstrong Siddeley Sapphire has manual transmission. 1955 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 2009 Jaguar XJ | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XJ |
| Year Released | 1955 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3435 cc | 2966 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 235 HP |
| Engine RPM | 4700 RPM | 6800 RPM |
| Torque | 247 Nm | 293 Nm |
| Torque RPM | 2000 RPM | 4100 RPM |
| Engine Bore Size | 90 mm | 89 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Engine Compression Ratio | 7.0:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1614 kg |
| Vehicle Length | 5390 mm | 5100 mm |
| Vehicle Width | 1840 mm | 1870 mm |
| Vehicle Height | 1680 mm | 1450 mm |
| Wheelbase Size | 3380 mm | 3040 mm |
| Fuel Tank Capacity | 72 L | 85 L |
