The fourth-generation Jaguar XJ is a saloon car built by British manufacturer Jaguar Cars, later known as Jaguar Land Rover, from 2010 to 2019. 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 X350 generation. The model was discontinued in 2019. As of 2023 it is the final generation of the Jaguar XJ.