1975 Jaguar XJS vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 30 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, 2005 Porsche 911 (315 HP @ 6800 RPM) has 24 more horse power than 1975 Jaguar XJS. (291 HP @ 5500 RPM) In normal driving conditions, 2005 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 205 kg more than 2005 Porsche 911.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Jaguar XJS. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 will offer significantly more control. 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 61 more torque (in Nm) than 2005 Porsche 911. (370 Nm @ 4250 RPM). This means 1975 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911. 2005 Porsche 911 has automatic transmission and 1975 Jaguar XJS has manual transmission. 1975 Jaguar XJS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Porsche 911 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 Jaguar XJS | 2005 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJS | 911 |
| Year Released | 1975 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 5342 cc | 3596 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 291 HP | 315 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 431 Nm | 370 Nm |
| Torque RPM | 3250 RPM | 4250 RPM |
| Engine Bore Size | 90 mm | 96 mm |
| Engine Stroke Size | 70 mm | 82.8 mm |
| Engine Compression Ratio | 12.5:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 241 km/hour | 280 km/hour |
| Acceleration 0-100mph | 8 seconds | 5.3 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1565 kg |
| Vehicle Length | 4770 mm | 4440 mm |
| Vehicle Width | 1800 mm | 1840 mm |
| Vehicle Height | 1270 mm | 1300 mm |
| Wheelbase Size | 2600 mm | 2360 mm |
| Fuel Consumption Overall | 12.1 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 86 L | 64 L |
