Background
The Jaguar Mark I is a well-known saloon car produced from 1955 to 1959 when production ended, and the model was replaced with the Mark II. Interestingly, the Mark I never bore that denomination back in the day; its designation was in fact retroactive following the car’s replacement by the 2.4-litre Mark II.
The Mark I was sold in two engine versions, the first having a 2.4 litre straight-six. This version was announced in September 1955 and 17 months later, a 3.4 litre version for the American market was launched. The latter was at first not freely available for the domestic market but did eventually become so. Jaguar’s 2.4 and 3.4 litre cars were the first saloons that the make produced after the War and introduced a modern style and new level of performance to the company.
Do not mistake the Mark I for the larger (and later) Mark VII! Although both cars have a family resemblance, the Mark VII is larger and differed in many other ways. The MKI was the first Jaguar to feature a unitary construction of body and chassis. It was fitted with independent front suspension with double wishbones, coil springs, telescopic dampers and an anti-roll bar, all carried in a separate subframe mounted to the body by rubber bushes. At launch, the Mark I was equipped with drum brakes, with disc brakes becoming available as an option (on all four wheels!) from the end of 1957.
A rather unusual option that was proposed to customers was the choice between standard or special equipment with the former missing a tachometer, heater (though optional), windscreen washes, fog lights and cigar lighter… it is safe to assume that ordering a new car in the UK without a cigar lighter must have come close to a lese-majesty offence at the time.
When MKI production ended in 1959, a total of 19.992 of the 2.4 and 17.405 of the 3.4 litre versions had left the factory gates. Given the relatively high production numbers, you can easily find a MKI for sale on the open market but finding an example in good condition with sound mechanicals can be challenging; these cars were often used as daily drivers and many cars tend to be ‘tired’.







