1973 Jaguar XJ vs. 1989 Porsche 911
To start off, 1989 Porsche 911 is newer by 16 year(s). Which means there will be less support and parts availability for 1973 Jaguar XJ. In addition, the cost of maintenance, including insurance, on 1973 Jaguar XJ 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 23 more horse power than 1989 Porsche 911. (228 HP @ 5900 RPM). In normal driving conditions, 1973 Jaguar XJ should accelerate faster than 1989 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1973 Jaguar XJ weights approximately 605 kg more than 1989 Porsche 911. 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 123 more torque (in Nm) than 1989 Porsche 911. (286 Nm @ 4800 RPM). This means 1973 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1989 Porsche 911. 1973 Jaguar XJ has automatic transmission and 1989 Porsche 911 has manual transmission. 1989 Porsche 911 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 | 1989 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJ | 911 |
| Year Released | 1973 | 1989 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 5344 cc | 3164 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 251 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 409 Nm | 286 Nm |
| Torque RPM | 3500 RPM | 4800 RPM |
| Engine Bore Size | 90 mm | 95 mm |
| Engine Stroke Size | 70 mm | 74.4 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1230 kg |
| Vehicle Length | 4850 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1660 mm |
| Vehicle Height | 1380 mm | 1330 mm |
| Wheelbase Size | 2770 mm | 2270 mm |
| Fuel Tank Capacity | 90 L | 80 L |
