265 bhp, 3,781 cc DOHC inline six-cylinder engine with triple SU carburettors, four-speed manual gearbox with Laycock de Normanville overdrive, independent front suspension with wishbones, coil springs, torsion bars and anti-roll bar, rigid rear axle with semi-elliptic leaf springs, and four-wheel hydraulic disc brakes. Wheelbase: 102"

- The ultimate evolution of the XK-Series Jaguars of the 1950s

- One of 36 XK150 S 3.8 Roadsters and one of 24 special-order cars produced

- Original, unrestored example with matching numbers and original factory colours

- Heritage Certificate and Operating, Maintenance and Service Book signed by William Lyons

Registered OTS 999, this car was the 63rd XK150 Roadster built and sold new with optional chrome wire wheels. Special Equipment extras included fog lamps, a dual exhaust system and square-pad disc brakes. The engine was fitted with a straight-port ‘Gold Top’ cylinder head, lead and bronze bearings and a lightened flywheel. Originally supplied by Henley’s Ltd. of West Hounslow to the first owner, R.A Hellmuth, on 7 March 1960, OTS 999 was finished in Old English White with a red leather cockpit.

OTS 999 was subsequently sold in 1965 to its second owner, Mr. Chandler of Hertford, who in 1972 enlisted the Caxton Engineering Company to re-cellulose the car and re-chrome the radiator grille, rear bumper, headlamp surrounds, windscreen mouldings, motifs and exterior components. He sold the car in March that year to a Mr. Ballisat, who shortly thereafter passed it to a Mr. Woodley of Cardiff for £2,500 on 17 August 1973, with mileage reading 32,560.

Mr. Woodley was a keen enthusiast who owned the car for many years. In August 1976, he was invited by the Jaguar Drivers Club and Thoroughbred & Classic Cars magazine to display the XK at the national classic car concours at Weston Park. Just one month later, OTS 999 earned the XK150 Champion Concours Cup at an XK day at Sudeley Castle and then went on to win numerous other concours awards including a first in the JDC Concours d’Elegance at Paighton, Devon. Mr. Woodley was a fastidious owner and kept close records of maintenance work, journeys and mileage, which remain within the history file.

In February 1999, Mr. Woodley sold OTS 999 to Mr. Hughes of Hampshire, who sent the car to Richard Galvani of Cambridge Motorsport in March. Work included reconditioning of the steering rack, an unleaded conversion, rebuilding of the front suspension, a new starter motor, a new alternator, replacement rear-brake callipers and pads, Aeroquip brake lines, a new radiator, reconditioning of the prop-shaft and a new exhaust system. In April 2000, the Jaguar returned to Cambridge Motorsport for an engine and gearbox rebuild to prepare it for its participation in the Australian Classic Adelaide Rally that October, which it successfully completed. In 2002, Mr. Hughes instructed Cambridge Motorsport to sell the Jaguar, and in August, a Mr. Pressland acquired it.

Marque specialists Guy Broad were commissioned to rebuild the cylinder head and replace the brake master cylinder and the front and rear brake pads. The vendor acquired OTS 999 in December 2006 and immediately fitted tracking and battery charging systems. In July 2010, Guy Broad rebuilt the engine, and it is understood to perform extremely well.

OTS 999 is exceptionally rare as one of only 36 3.8S Roadsters and one of just 24 “special order” cars produced. The extensive history file contains a JDHT certificate, correspondence between the respective owners and noted Jaguar specialists, a current MoT road test certificate, many previous certificates and tax discs and an original XK150 Operating, Maintenance and Service Book signed by William Lyons. Indeed, no expense has been spared to keep this spectacularly original car in fine order.