1956 Armstrong Siddeley Sapphire vs. 2012 Jaguar XK
To start off, 2012 Jaguar XK is newer by 56 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 5,000 cc (8 cylinders), 2012 Jaguar XK is equipped with a bigger engine. In terms of performance, 2012 Jaguar XK (385 HP @ 6500 RPM) has 267 more horse power than 1956 Armstrong Siddeley Sapphire. (118 HP @ 5000 RPM) In normal driving conditions, 2012 Jaguar XK should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2012 Jaguar XK weights approximately 130 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, 2012 Jaguar XK (515 Nm @ 3500 RPM) has 326 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (189 Nm @ 3500 RPM). This means 2012 Jaguar XK will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire. 2012 Jaguar XK has automatic transmission and 1956 Armstrong Siddeley Sapphire has manual transmission. 1956 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Jaguar XK will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 2012 Jaguar XK | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Sapphire | XK |
| Year Released | 1956 | 2012 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2290 cc | 5000 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 385 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 189 Nm | 515 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 6-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 1780 kg |
| Vehicle Length | 4910 mm | 4793 mm |
| Vehicle Width | 1840 mm | 1892 mm |
| Vehicle Height | 1670 mm | 1328 mm |
| Wheelbase Size | 2900 mm | 2751 mm |
| Fuel Tank Capacity | 72 L | 61 L |
