1973 Jaguar XJ vs. 1968 Jaguar XJ6
To start off, 1973 Jaguar XJ is newer by 5 year(s). Which means there will be less support and parts availability for 1968 Jaguar XJ6. In addition, the cost of maintenance, including insurance, on 1968 Jaguar XJ6 would be higher. At 5,344 cc (12 cylinders), 1973 Jaguar XJ is equipped with a bigger engine. In terms of performance, 1973 Jaguar XJ (251 HP @ 6000 RPM) has 6 more horse power than 1968 Jaguar XJ6. (245 HP @ 5400 RPM). In normal driving conditions, 1973 Jaguar XJ should accelerate faster than 1968 Jaguar XJ6. With that said, vehicle weight also plays an important factor in acceleration. 1973 Jaguar XJ weights approximately 155 kg more than 1968 Jaguar XJ6. 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, 1973 Jaguar XJ (409 Nm @ 3500 RPM) has 24 more torque (in Nm) than 1968 Jaguar XJ6. (385 Nm @ 3750 RPM). This means 1973 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1968 Jaguar XJ6. 1973 Jaguar XJ has automatic transmission and 1968 Jaguar XJ6 has manual transmission. 1968 Jaguar XJ6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1973 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 Jaguar XJ | 1968 Jaguar XJ6 | |
| Make | Jaguar | Jaguar |
| Model | XJ | XJ6 |
| Year Released | 1973 | 1968 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5344 cc | 4235 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 251 HP | 245 HP |
| Engine RPM | 6000 RPM | 5400 RPM |
| Torque | 409 Nm | 385 Nm |
| Torque RPM | 3500 RPM | 3750 RPM |
| Engine Bore Size | 90 mm | 92.1 mm |
| Engine Stroke Size | 70 mm | 106 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1680 kg |
| Vehicle Length | 4850 mm | 4820 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1350 mm |
| Wheelbase Size | 2770 mm | 2780 mm |
| Fuel Tank Capacity | 90 L | 104 L |
