1992 Jaguar XJR-15 vs. 1991 Porsche 928
To start off, 1992 Jaguar XJR-15 is newer by 1 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 5,993 cc (12 cylinders), 1992 Jaguar XJR-15 is equipped with a bigger engine. In terms of performance, 1992 Jaguar XJR-15 (450 HP @ 6250 RPM) has 144 more horse power than 1991 Porsche 928. (306 HP @ 5900 RPM). In normal driving conditions, 1992 Jaguar XJR-15 should accelerate faster than 1991 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 480 kg more than 1992 Jaguar XJR-15.
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, 1992 Jaguar XJR-15 (569 Nm @ 4500 RPM) has 161 more torque (in Nm) than 1991 Porsche 928. (408 Nm @ 4100 RPM). This means 1992 Jaguar XJR-15 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 928.
Compare all specifications:
| 1992 Jaguar XJR-15 | 1991 Porsche 928 | |
| Make | Jaguar | Porsche |
| Model | XJR-15 | 928 |
| Year Released | 1992 | 1991 |
| Body Type | Coupe | Coupe |
| Engine Position | Middle | Front |
| Engine Size | 5993 cc | 4663 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 450 HP | 306 HP |
| Engine RPM | 6250 RPM | 5900 RPM |
| Torque | 569 Nm | 408 Nm |
| Torque RPM | 4500 RPM | 4100 RPM |
| Engine Bore Size | 90 mm | 97 mm |
| Engine Stroke Size | 78.5 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 307 km/hour | 319 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 1 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1050 kg | 1530 kg |
| Vehicle Length | 4810 mm | 4530 mm |
| Vehicle Width | 1910 mm | 2060 mm |
| Vehicle Height | 1110 mm | 1290 mm |
| Wheelbase Size | 2870 mm | 2510 mm |
| Fuel Tank Capacity | 90 L | 76 L |
