1975 Jaguar XJS vs. 1958 Jaguar MK IX
To start off, 1975 Jaguar XJS is newer by 17 year(s). Which means there will be less support and parts availability for 1958 Jaguar MK IX. In addition, the cost of maintenance, including insurance, on 1958 Jaguar MK IX would be higher. At 5,342 cc (12 cylinders), 1975 Jaguar XJS is equipped with a bigger engine. In terms of performance, 1975 Jaguar XJS (291 HP @ 5500 RPM) has 74 more horse power than 1958 Jaguar MK IX. (217 HP @ 5500 RPM). In normal driving conditions, 1975 Jaguar XJS should accelerate faster than 1958 Jaguar MK IX. With that said, vehicle weight also plays an important factor in acceleration. 1958 Jaguar MK IX weights approximately 35 kg more than 1975 Jaguar XJS.
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, 1975 Jaguar XJS (431 Nm @ 3250 RPM) has 101 more torque (in Nm) than 1958 Jaguar MK IX. (330 Nm @ 3000 RPM). This means 1975 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1958 Jaguar MK IX.
Compare all specifications:
| 1975 Jaguar XJS | 1958 Jaguar MK IX | |
| Make | Jaguar | Jaguar |
| Model | XJS | MK IX |
| Year Released | 1975 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 5342 cc | 3781 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 291 HP | 217 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 431 Nm | 330 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 90 mm | 87.1 mm |
| Engine Stroke Size | 70 mm | 106 mm |
| Engine Compression Ratio | 12.5:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1770 kg | 1805 kg |
| Vehicle Length | 4770 mm | 5000 mm |
| Vehicle Width | 1800 mm | 1860 mm |
| Vehicle Height | 1270 mm | 1600 mm |
| Wheelbase Size | 2600 mm | 2900 mm |
