Jaguar founder Sir William Lyons had a hit on his hands when he launched the "compact" 2.4 liter sports saloon in 1956. A year later those wanting more thrills were offered the 120mph 3.4 Liter. Both were replaced in 1960 by the Mk2 models, which added a 3.8 liter, and from there on, the range was developed and expanded with the long-booted S-type of 1964, the 4.2 liter 420 of 1967, and the final 240/340 models of 1968. Alongside there were the Daimler V8 and Sovereign models.

The Mk1 and Mk2 and their derivatives have been heading the list of desirable classic cars for many years, and more and more worn-out, semi-derelict examples are being dragged out of garages and barns to be restored. For those seeking originality in a restoration, or considering the purchase of a car, or even noting points of originality or otherwise in a car they already own, Factory-Original Jaguar Mk1 & Mk2 provides the comprehensive guide to factory specifications, equipment and finishes in all departments. It covers engine and transmission, body panels, interior and exterior trim, electrics, dashboard, instruments, switches and controls, lamps, under the hood components, paint and trim colors - in fact, everything right down to the tool kit, from the beginning of production to the end. The text is accompanied by some 300 specially commissioned color photographs of outstanding examples of the cars, enabling the reader to view every model and variant in considerable detail.