Jaguar XJ X350
The Jaguar XJ (X350) (2003–2006) is a large, four-door, front-engine, rear drive luxury sedan/saloon manufactured and marketed by Jaguar Cars and facelifted as the (X358) (2007–2009). The X350 is the third generation of the Jaguar XJ sedan, succeeding the X308 (1997–2002).
Featuring traditional exterior and interior styling, a V6 or V8 engine and automatic transmission, the XJ was completely re-engineered and was noted for its aluminum monocoque bodywork.
Like the Audi A8, the X350's chassis and body were constructed from aluminium. While some steel was used in places throughout the chassis, the X350 has a stressed aluminium unitary body similar in general design to a conventional steel structure, but with two differences; its underbody components are bonded together with aerospace-grade epoxy adhesives while around 3,200 self-piercing rivets are used to create the new XJ's unibody.
This differs from the A8's construction which uses an aluminium spaceframe to which aluminium panels are then attached. However, the aluminium Audi A8 weighs a comparatively high 1,830 kg (4,030 lb) (3.0 V6 TDi) compared to 1,539 kg (3,393 lb) of the (3.0 V6) XJ. On its own, the current XJ's bodyshell weighs about the same as a contemporary Mini Hatch. If the car were made of steel, it was estimated that it would weigh 40% more. The third generation of Jaguar's rear suspension changed from the previous double wishbone layout in favour of a more sophisticated multi-link arrangement. In addition the car has all round adaptive air suspension, just like the Audi A8.
The X350 features outer headlights larger than the inner headlights as well as greater width length and height, compared to the previous model. Beginning in 2004, chrome trim in the window areas between the front and back doors has been discontinued. The vehicle was the first Jaguar to be built using self-piercing rivets.