The XJS was introduced in Sept. 1975 at a time when Jaguar had a reputation for poor reliability. The V12 engine was hit by the fuel crisis but the HE engine solved that problem and in 1981 finish and reliability were greatly improved making the post 1981 cars more desirable. The introduction of the 6-cylinder model in 1984 boosted its popularity, and sales in 1987 were nearly eight times those of 1981. Other models followed including cabriolets and convertibles. This is a book of contemporary road and comparison tests, technical and specification data, new model intro's, tuning, travel, driver's impressions, buying second hand and racing. Models covered include: Automatic, Tullius, convertible, HE, HE Automatic, Eventer, 3.6C, Cabriolet, TWR, XJ-SC.