Jaguar XK150S Roadster

First introduced in the fall of 1957, the XK 150 was intended to compete against the BMW 507 and Mercedes 300SL. As the third and final evolution of its series, it represented the best and most highly developed XK ever built. Although similar in its overall design to its predecessors, styling revisions included the replacement of the traditional cut-down doors with a higher, more subtle beltline. The front aspect was changed by widening the grille, the two-piece windshield was modified to a more contemporary curved, one-piece version, and the Open Two Seaters now benefitted from roll-up windows.

In the spring of 1958, the high performance ‘S’ model was introduced. The new XK 150S featured a gold-colored, Harry Weslake-modified straight-port cylinder head that helped boost performance of the 3.4-liter engine from 190 to 250 horsepower. The ‘S’ model also enjoyed improved fuel flow by way of three large SU carburetors and had a usefully higher compression head (9.0:1 versus 8.0:1) with more aggressive cam timing. Every ‘S’ model came standard with a four-speed manual transmission with overdrive.

All told, 1,466 examples of the XK 150S were produced until 1961, of which less than 1,000 were Open Two Seaters. In fact, the Jaguar on offer is one of just 361 left-hand drive XK 150S cars assembled and, according to the vendor, was previously owned by a former owner of the New York Daily News. It was eventually acquired by Mr. Nicolas Juncadella of New York and Florida; a Ferrari, Porsche and Jaguar collector who noticed the car during the purchase of a farm he acquired in Stanfordville, New York – and then insisted that it become part of the overall transaction.

Part of the RM Auctions events: Amelia Island in August, 2009; Monterey in October, 2009; London in July, 2010; Rochester in August, 2010; Monterey in June, 2011; Arizonain January, 2013.

250bhp, 3,442 cc dual overhead cam inline six-cylinder engine with three SU carburetors, four-speed manual transmission with overdrive, independent front suspension, live rear axle with semi-elliptic leaf springs, four-wheel disc brakes. Wheelbase: 102".

Source: RM Auctions
Photo Credit: Copyright Darin Schnabel; Neil Fraser

Jaguar XK150S Roadster