The Jaguar XJ (X351) is a saloon car built by British manufacturer Jaguar Cars, later known as Jaguar Land Rover, from 2010 to 2019. It is the fourth-generation of the Jaguar XJ model. Referred to internally within Jaguar as the X351, it was announced in 2009 before going on sale in 2010, and combines revised styling with underpinnings of the previous Jaguar X350 generation. The model was discontinued in 2019. It is the final generation of the XJ, after the electric Jaguar XJ was cancelled in February 2021.
Jaguar invited Jay Leno to unveil the new XJ during the launch at the Saatchi Gallery in London on 9 July 2009. The event was broadcast live on the Jaguar website. The US model was unveiled at the 2009 Pebble Beach Concours d'Elegance.
Production of the car was due to begin in September 2009, with first deliveries being made in early 2010. Production later began in 2010, with the car arriving in dealer showrooms in May 2010. Production was initially carried out