Jaguar XJ X351
The Jaguar XJ (X351) is the latest version of the Jaguar XJ executive saloon from Jaguar Cars. Announced in 2009, and on sale from 2010, the new model features completely new styling combined with underpinnings based on the previous X350 version.
The XJ was designed at Jaguar Land Rover's Whitley plant in Coventry, by a team led by design director Ian Callum. Design work began in 2005, with final theme approval taking place in November 2006 and the design being frozen in the first half of 2008. The new design is a complete break from any earlier XJ, although mechanically the car is a development of the previous version.
In addition to the standard version with a 3,035 mm (119.5 in) wheelbase, a long-wheelbase version is available with a 3,160 mm (124 in) wheelbase.However, unlike other full-size flagship executive cars, the long-wheelbase variant was designed first and is expected to make up 67 percent of sales in the United States market.
The XJ features a lightweight aluminium floorpan & body (with 50% recycled material content) based on the X350 chassis and retaining a proportion of the earlier floor pan. The biggest change is reversion to steel coil springs for the front suspension, retaining air suspension for the rear only. Continuously variable damping electronically controlled as before but with driver selectable modes. The aluminium alloy uni-body makes the XJL among the lightest of the full-size executive saloons despite its exterior proportions, weighing in at 4,131 lb (1,874 kg), which is 245 lb (111 kg) lighter than the mid-size/executive BMW 550i.