1975 Jaguar XJS vs. 1990 Porsche Pan Americana
To start off, 1990 Porsche Pan Americana is newer by 15 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, 1975 Jaguar XJS (291 HP @ 5500 RPM) has 44 more horse power than 1990 Porsche Pan Americana. (247 HP @ 6100 RPM). In normal driving conditions, 1975 Jaguar XJS should accelerate faster than 1990 Porsche Pan Americana. With that said, vehicle weight also plays an important factor in acceleration. 1975 Jaguar XJS weights approximately 294 kg more than 1990 Porsche Pan Americana. 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, 1975 Jaguar XJS (431 Nm @ 3250 RPM) has 121 more torque (in Nm) than 1990 Porsche Pan Americana. (310 Nm @ 4800 RPM). This means 1975 Jaguar XJS will have an easier job in driving up hills or pulling heavy equipment than 1990 Porsche Pan Americana.
Compare all specifications:
| 1975 Jaguar XJS | 1990 Porsche Pan Americana | |
| Make | Jaguar | Porsche |
| Model | XJS | Pan Americana |
| Year Released | 1975 | 1990 |
| 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 | 2 valves |
| Horse Power | 291 HP | 247 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 431 Nm | 310 Nm |
| Torque RPM | 3250 RPM | 4800 RPM |
| Engine Bore Size | 90 mm | 100 mm |
| Engine Stroke Size | 70 mm | 76.4 mm |
| Engine Compression Ratio | 12.5:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline |
| 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 | 1476 kg |
| Vehicle Length | 4770 mm | 4210 mm |
| Vehicle Width | 1800 mm | 1870 mm |
| Vehicle Height | 1270 mm | 1310 mm |
| Wheelbase Size | 2600 mm | 2280 mm |
