1975 Jaguar XJS vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 29 year(s). Which means there will be less support and parts availability for 1975 Jaguar XJS. In addition, the cost of maintenance, including insurance, on 1975 Jaguar XJS would be higher. At 5,342 cc (12 cylinders), 1975 Jaguar XJS is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (377 HP @ 7400 RPM) has 86 more horse power than 1975 Jaguar XJS. (291 HP @ 5500 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1975 Jaguar XJS. With that said, vehicle weight also plays an important factor in acceleration. 1975 Jaguar XJS weights approximately 315 kg more than 2004 Porsche 911.
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 46 more torque (in Nm) than 2004 Porsche 911. (385 Nm @ 5000 RPM). This means 1975 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 2004 Porsche 911.
Compare all specifications:
| 1975 Jaguar XJS | 2004 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJS | 911 |
| Year Released | 1975 | 2004 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5342 cc | 3600 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 291 HP | 377 HP |
| Engine RPM | 5500 RPM | 7400 RPM |
| Torque | 431 Nm | 385 Nm |
| Torque RPM | 3250 RPM | 5000 RPM |
| Engine Bore Size | 90 mm | 100 mm |
| Engine Stroke Size | 70 mm | 76.4 mm |
| Engine Compression Ratio | 12.5:1 | 11.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 241 km/hour | 306 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1455 kg |
| Vehicle Length | 4770 mm | 4440 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1270 mm | 1280 mm |
| Wheelbase Size | 2600 mm | 2360 mm |
| Fuel Consumption Overall | 12.1 L/100km | 13 L/100km |
| Fuel Tank Capacity | 86 L | 89 L |
