When Jaguar's XJ range arrived in 1968, it quickly established itself not only as a world-beater but also as the central model in the Jaguar range. Riding high throughout the 1970s, it was nevertheless losing some of its appeal by the time Ford bought the Jaguar company at the end of the next decade. These last three generations of the classic Jaguar XJ saloons closed an era in which Jaguar had sy...