The December issue of Jaguar World celebrates 50 years of the XJ-S with an in-depth twin-test between the 3.6 manual and the V12 convertible. Paul Walton explores the short-lived XJC, drives the first post-war MkV, and revisits a Paramount-tuned XKR. Plus: buying the X358 XJ, a scenic Scottish road trip, workshop fixes for XE heated seats and Fosseway cooling upgrades, and the latest Jaguar news and club updates.