Numbering of models of English cars is a mystrious thin at the best of times but there is usually a reason for model numbers. Does anyone know why the numbering of the big Jags started at Mark V? Where did XK come from (120 and 120C I know about)? And while we're at it, what about the XJ in XJ6? Is it just the next one on from XK? GrahamL
As has been pointed out many times, there was / is no logic to Jaguar model or powerplant designation. In the old days Bill Lyons named them all, then it became the province of the marketing types who felt they had to protect the "heritage" aspect of the brand and wanted continuity. Thus we now see that the big sedan is the "XJ", the 2 seater is the ressurected "XK".
When the mid-range sedan was being developed many of us working for the company at the time wanted it to be called the "Mark II", but there was a lot of concern that the term "Mark" would be associated too strongly with the Ford ownership & Lincoln's Mark series. Thus the old "S-Type" name was resurrected. As for the "X-Type", it was strictly a marketing decision, as Jaguar never had had a model in that segment before during modern times.
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