 From 2011, the 2.2-litre diesel engine from the Land Rover Freelander was added to the range as part of a facelift.The Jaguar XJ is a full-size luxury saloon.The model has been in production since 1968 with the first generation being the last Jaguar car to have creative input by the company's founder, Sir William Lyons, although this is disputed as some Jaguar historians claim that the second generation XJ – the XJ40 series – was the last car which Lyons had influenced.