Background
Launched in 1955, the Mk1, as it would become known after the Mk2's arrival, extended Jaguar's domination of the high-performance car market in Britain, slotting neatly into the Coventry firm's range alongside the big MkVII M saloon and the XK140 sports car. The medium size newcomer broke new ground for Jaguar, being its first model to employ unitary construction of the chassis and body.
Jaguar's engineers were understandably cautious in their approach, making the bodyshell stronger than it actually needed to be and employing rubber mountings just about everywhere to insulate occupants from vibration and noise. The Mk1 was released with a new, short stroke, 2.4-litre version of the proven XK six-cylinder DOHC engine, but demands for more power, especially from American customers, prompted the introduction of the 3.4-litre version early in 1957.
With 190bhp on tap the 3.4-litre Mk1 was good for a top speed of 120mph and could reach 60mph in nine seconds, though if used to the full this greatly improved performance severely taxed the drum brakes. All-round disc brakes were hurriedly announced as an option, becoming an almost universal fitting thereafter. The Mk1 was progressively updated throughout its life before a wholesale revision of the basic design saw it re-launched as the Mk2 in October 1959.
The new compact Jag was an advanced design for its day and this, plus all that extra strength built into the shell, helped it become a very successful competition car. This one has been built to emulate period race cars made famous by drivers such as the late Mike Hawthorn, whose own much-modified Mk1 was destroyed in that fatal accident on the Guildford bypass.
The owner managed to find a rare, untouched car that had survived rust free to base the build on, and as such this is about as close to an original period fast road Jaguar Mk1 as you’ll find.







