Jaguar XJ Specs, Engines & Dimensions (2003–2009) — Third Generation
The third-generation Jaguar XJ is a full-size luxury saloon offered in standard Sedan and stretched Sedan Long forms, pairing a lightweight aluminium body with the brand's traditional emphasis on quiet, long-distance comfort.
Each Jaguar XJ engine here drives the rear wheels through an automatic transmission, a classic luxury-sedan drivetrain that keeps the cabin calm. The 2.7 diesel, available in Sedan and Sedan Long form, favours strong low-rev pull and long touring range, while the 3.0 gasoline unit rewards higher revs with smoother, quieter delivery.
Jaguar XJ trim levels sit on top of a technical version rather than changing it: the 3.0 gasoline Sedan appears as Executive and Individual, sharing the same powertrain but differing in comfort and convenience equipment. Checking the specific car's specification list matters, since options were frequently added individually when new.