1999 Jaguar XK vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Jaguar XK. In addition, the cost of maintenance, including insurance, on 1999 Jaguar XK would be higher. At 3,996 cc (8 cylinders), 1999 Jaguar XK is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (316 HP @ 4250 RPM) has 26 more horse power than 1999 Jaguar XK. (290 HP @ 6100 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 1999 Jaguar XK. With that said, vehicle weight also plays an important factor in acceleration. 1999 Jaguar XK weights approximately 215 kg more than 2007 Porsche 911.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Jaguar XK. In wet, icy, snow, or gravel driving conditions, 2007 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, 1999 Jaguar XK (393 Nm @ 4250 RPM) has 23 more torque (in Nm) than 2007 Porsche 911. (370 Nm @ 4250 RPM). This means 1999 Jaguar XK will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche 911.
Compare all specifications:
| 1999 Jaguar XK | 2007 Porsche 911 | |
| Make | Jaguar | Porsche |
| Model | XK | 911 |
| Year Released | 1999 | 2007 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3996 cc | 3595 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 290 HP | 316 HP |
| Engine RPM | 6100 RPM | 4250 RPM |
| Torque | 393 Nm | 370 Nm |
| Torque RPM | 4250 RPM | 4250 RPM |
| Engine Bore Size | 86 mm | 96 mm |
| Engine Stroke Size | 86 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1700 kg | 1485 kg |
| Vehicle Length | 4770 mm | 4440 mm |
| Vehicle Width | 1840 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1310 mm |
| Wheelbase Size | 2600 mm | 2360 mm |
| Fuel Tank Capacity | 75 L | 64 L |
