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Lot 266: Jaguar XK 120 Roadster

The Monaco Sale, Bonhams (11 May 2012)

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 MkVII 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 MkV 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 produced until 1954 and would prove to be the most popular of the XK series, with 12,078 examples built of which 6,437 were left-hand drive roadsters, mostly destined for America unlike the European version from new as offered here. This original, left-hand drive XK120 was completed on 29th January 1953 and delivered new to R.M. Overseas in Düsseldorf, Germany on 18th February 1953. It was supplied with the 'C-Type' cylinder head, which combined with 8.0:1 pistons and 1¾" SU carburettors, increased maximum power to 210bhp. The car was purchased in 1986 from Jean-Claude Chansel in Saint Maur, France and treated to a seven-year, 'bare-chassis', concours restoration carried out by a well known member of the French Jaguar Drivers Club at a cost close to ¬100,000 (see invoices and photographic record on file). Maintained by respected marque specialist, Atelier Sontrop, the 'XK' has been fitted with a higher-ratio rear axle for more relaxed cruising, while the cylinder head has been converted to run on unleaded fuel. Finished in Old English White with red leather interior and chromed wire wheels, this 'ultimate' XK120 comes with Monaco registration and a full record of invoices.

Lot Details
Auction The Monaco Sale
Bonhams, Monaco
Lot Number266
Outcome SOLD
Hammer Price€75000
Hammer Price (inc premium)€86250
Condition rating
Registration number
Chassis numberS 673526
Engine numberW 7362-8S
Engine capacity (cc)
Engine - cylinders
Number of doors2