1958 Armstrong Siddeley Star Sapphire vs. 1997 Jaguar XK
To start off, 1997 Jaguar XK is newer by 39 year(s). Which means there will be less support and parts availability for 1958 Armstrong Siddeley Star Sapphire. In addition, the cost of maintenance, including insurance, on 1958 Armstrong Siddeley Star Sapphire would be higher. At 3,996 cc (8 cylinders), 1997 Jaguar XK is equipped with a bigger engine. In terms of performance, 1997 Jaguar XK (290 HP @ 6100 RPM) has 145 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1997 Jaguar XK should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 208 kg more than 1997 Jaguar XK.
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, 1997 Jaguar XK (393 Nm @ 4250 RPM) has 81 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1997 Jaguar XK will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 1997 Jaguar XK | |
| Make | Armstrong Siddeley | Jaguar |
| Model | Star Sapphire | XK |
| Year Released | 1958 | 1997 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 3996 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 290 HP |
| Engine RPM | 4250 RPM | 6100 RPM |
| Torque | 312 Nm | 393 Nm |
| Torque RPM | 2000 RPM | 4250 RPM |
| Engine Bore Size | 97.1 mm | 86 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 7.5:1 | 10.7:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1778 kg | 1570 kg |
| Vehicle Length | 4940 mm | 4770 mm |
| Vehicle Width | 1890 mm | 1840 mm |
| Vehicle Height | 1580 mm | 1300 mm |
| Wheelbase Size | 2900 mm | 3040 mm |
| Fuel Tank Capacity | 72 L | 75 L |
