1951 Jaguar XK 120


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1951 Jaguar XK120 3.8-Litre Roadster
Registration no. TUR 25
Chassis no. 660587

'We claimed 120 mph (for the XK 120), a speed unheard of for a production car in those days' - William Heynes, Chief Engineer, Jaguar Cars.

Conceived and constructed in but a few months, the XK120 debuted at the 1948 Earls Court Motor Show where the stunning-looking roadster caused a sensation, the resulting demand for what was then the world's fastest production car taking Jaguar by surprise. With orders rolling in apace, Jaguar had no choice but to think again about the XK120's method of construction. The work of Jaguar boss William Lyons himself and one of the most beautiful shapes ever to grace a motor car, the body had been conceived as a coachbuilt, aluminium panelled structure for the simple reason that Jaguar expected to sell no more than 200 XK120s in the first year! In conjunction with the Pressed Steel Fisher Company a new all-steel panelled body was developed, which retained the fabulous looks of the coachbuilt original while differing in minor external details. Beneath the skin the steel car was entirely different and it would take some 20 months of development before manufacture could begin.

The XK120's heart was, of course, the fabulous XK engine, which had been developed during the war and was intended for Jaguar's forthcoming Mark VII saloon. A 3.4-litre 'six' embodying the best of modern design, it boasted twin overhead camshafts running in an aluminium-alloy cylinder head, seven main bearings and a maximum output of 160bhp. It went into a chassis that was essentially a shortened version of the simultaneously announced Mark V saloon's, featuring William Heynes' torsion bar independent front suspension. Jaguar lost no time in demonstrating that the XK120's claimed top speed was no idle boast. In May 1949, on the Jabbeke to Aeltre autoroute, an example with its hood and side screens in place recorded a speed of 126mph and 132mph with the hood and windscreen detached and an under-tray fitted.

The XK120 set new standards of comfort, roadholding and performance for British sports cars and, in keeping with the Jaguar tradition, there was nothing to touch it at the price. Coupé and drophead coupé versions followed, and for customers who found the standard car too slow, there was the Special Equipment (SE) package which boosted power to 180bhp. With either engine and regardless of the type of bodywork, the XK120 was a genuine 120mph car capable of sustained high-speed cruising.

The XK120 was produced until 1954 and would prove to be the most popular of the XK series, with 12,078 examples built, of which only 1,175 were right-hand drive roadsters like that offered here. Finished in cream livery, '660587' was completed on 11th January 1951 and supplied new to Henlys in London on the 29th of that month, subsequently belonging to the same family from 1985 to 2016.

In 1985, this XK was prepared for rallying and tours, including the Pirelli Marathon, while three years later, in 1988, it benefited from extensive works carried out by Roman Garage near Grantham. These works were supervised by the late W E 'Wilkie' Wilkinson, celebrated former team mechanic with Écurie Écosse and BRM (see invoice on file). The original engine being deemed beyond repair, an overhauled and tuned (9.0:1 compression ratio) 3.8-litre unit was installed, while at the same time the braking system was up-rated with XK150 discs all round. Since then, the car has been rallied regularly, including the 2001 Rally of the Tests, featuring as the main illustration in Classic & Sports Car magazine's article on the event.

Roman Garage continued to service the XK on a regular basis, as evidenced by bills on file. The file also contains an old-style green logbook, V5C registration document, Heritage Trust Certificate, and numerous MoT certificates, the earliest dating back to 1972. Since its acquisition by the current vendor in November 2016, the XK has been maintained by his own in-house mechanic. A wonderful opportunity to acquire an upgraded example of Jaguar's iconic and much loved XK sports car in its earliest and purest form, eminently usable and ready to enjoy.