The seventh generation of Jaguar XJ was introduced for the 2004 model year. Known as the XJ350, the seventh generation XJ was offered as a short or long wheelbase luxury sedan. The XJ350 was built using an aluminium unibody technique, making the car lighter than its predecessor. In 2007, the XJ350 received a facelift, cars built after 2007 are known as the XJ358. Production of the XJ350 generation of XJ ended in 2009. The XJ350 was replaced by the Jaguar XJ351.