2007 Jaguar XJ8 vs. 1998 Porsche 911
To start off, 2007 Jaguar XJ8 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 4,196 cc (8 cylinders), 2007 Jaguar XJ8 is equipped with a bigger engine. In terms of performance, 2007 Jaguar XJ8 (301 HP @ 6000 RPM) has 5 more horse power than 1998 Porsche 911. (296 HP @ 6800 RPM). In normal driving conditions, 2007 Jaguar XJ8 should accelerate faster than 1998 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2007 Jaguar XJ8 weights approximately 219 kg more than 1998 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Jaguar XJ8. In wet, icy, snow, or gravel driving conditions, 1998 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, 2007 Jaguar XJ8 (420 Nm @ 4100 RPM) has 70 more torque (in Nm) than 1998 Porsche 911. (350 Nm @ 4600 RPM). This means 2007 Jaguar XJ8 will have an easier job in driving up hills or pulling heavy equipment than 1998 Porsche 911.
Compare all specifications:
| 2007 Jaguar XJ8 | 1998 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XJ8 | 911 |
| Year Released | 2007 | 1998 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4196 cc | 3387 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 296 HP |
| Engine RPM | 6000 RPM | 6800 RPM |
| Torque | 420 Nm | 350 Nm |
| Torque RPM | 4100 RPM | 4600 RPM |
| Engine Bore Size | 86 mm | 96 mm |
| Engine Stroke Size | 90.3 mm | 78 mm |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Top Speed | 250 km/hour | 275 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1639 kg | 1420 kg |
| Vehicle Length | 5220 mm | 4440 mm |
| Vehicle Width | 1450 mm | 1770 mm |
| Wheelbase Size | 3170 mm | 2360 mm |
| Fuel Tank Capacity | 85 L | 63 L |
