1957 Armstrong Siddeley Sapphire vs. 2008 Jaguar XF
To start off, 2008 Jaguar XF is newer by 51 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 2,965 cc (6 cylinders), 2008 Jaguar XF is equipped with a bigger engine. In terms of performance, 2008 Jaguar XF (235 HP @ 6800 RPM) has 150 more horse power than 1957 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2008 Jaguar XF should accelerate faster than 1957 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2008 Jaguar XF weights approximately 319 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, 2008 Jaguar XF (293 Nm @ 4100 RPM) has 132 more torque (in Nm) than 1957 Armstrong Siddeley Sapphire. (161 Nm @ 1750 RPM). This means 2008 Jaguar XF 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 | 2008 Jaguar XF | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XF |
| Year Released | 1957 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 2965 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 235 HP |
| Engine RPM | 4400 RPM | 6800 RPM |
| Torque | 161 Nm | 293 Nm |
| Torque RPM | 1750 RPM | 4100 RPM |
| Engine Bore Size | 70 mm | 89 mm |
| Engine Stroke Size | 100 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1360 kg | 1679 kg |
| Vehicle Length | 4580 mm | 4970 mm |
| Vehicle Width | 1750 mm | 1880 mm |
| Vehicle Height | 1570 mm | 1470 mm |
| Wheelbase Size | 2900 mm | 2920 mm |
| Fuel Tank Capacity | 72 L | 69 L |
