The Jaguar XJ receives a few refinements for 2006. Both V8 engines see modest increases in output, and the braking system has been revised for a better feel. New features include chrome-mesh grille inserts, laminated side-window glass for reduced road noise, satellite radio, Bluetooth wireless connectivity and an upgraded tire-pressure monitoring system.
Now into its seventh generation, Jaguar's flagship XJ sedan continues to provide the utmost in luxury and performance along with its unique British character. An all-aluminum body graces the Jaguar XJ, and that body is hung on an advanced aluminum frame. Because of the abundant use of aluminum, Jaguar completely reworked its aged Castle Bromwich plant. Thanks in part to a low curb weight afforded by the extensive use of aluminum, the XJ is both quick on its feet and efficient in the process. Its standard V8 engine is slightly larger and more powerful than the previous generation, but with less weight to propel, it achieves better mileage figures than the old model.
The Jaguar XJ-Series comes standard with four-wheel ventilated antilock brakes, BrakeAssist, front and rear seatbelt pre-tensioners, and side and head curtain airbags. Sensors monitor the front occupants' weight and position to the point that the airbags will deploy at a lesser rate or not at all if it is deemed unsafe for the occupant.