Jaguar’s XK120 was an instant hit at its 1948 Earls Court introduction. It was low and lithe and had a curvaceous envelope body, as well as a newly designed dual overhead-cam inline six-cylinder engine, which could willingly produce prodigious power and would endure as Jaguar’s standard bearer motor throughout the 1990s. The model took its name from a May 1949 speed run by a production roadster on Belgium’s Jabbeke Highway, where it was clocked in at over 120 mph.

For 1955, the chassis was redesigned with larger torsion bars and rack-and-pinion steering. The engine was given higher-lift camshafts, which raised horsepower to 190. The car was redesignated XK140, and an XK140 MC variant with the cylinder head from the C-Type Jag boosted brake horsepower to 210.

The final iteration of the original XK arrived in 1958 as the XK150. The car was significantly restyled and now had a higher beltline, with virtually no dip ahead of the rear fender. The windshield was a one-piece curved affair, and the grille was widened. For the first time, four-wheel disc brakes were available and fitted to most cars, while even the roadster version featured wind-up windows. An XK150 S model with an engine uprated to 250 brake horsepower was ultimately added to the line. In mid-1961, the all-new E-Type, which was sold as the XKE in North America, was introduced, and the XK150 was quietly phased out.

In the 1990s, this blue XK150 Roadster was restored to an impressively correct, award-winning standard by late Jaguar expert Reggie Ray in his Pennsylvania shop, and it still stuns today, with its deep blue paint and matching convertible top. The interior is upholstered in grey leather, with matching carpets, and it remains show-quality throughout. The chrome wire wheels sport knock-off caps and wide whitewall tires.

It is equipped with the 250-horsepower, triple-carburetor 3.4-liter “S” engine and also features the desirable Laycock de Normanville electric overdrive. The car’s odometer shows barely 42,000 miles, which are believed to be genuine. It is equipped with a correct period Radiomobile AM radio and comes with its original tool roll and owner’s manual. The car has earned numerous awards, including an AACA National First in 1996, several Best of Show awards, and multiple 100-point Jaguar Club North America honors. Accordingly, the car includes several boxes of trophies. Additional documentation provided with the car includes restoration photos and invoices. Since its show career, this Jaguar has covered very few road miles, and it has been properly stored for preservation in a climate-controlled environment, where it has been elevated on jack stands and has received regular lubrication. It has recently been serviced by F40 Motorsports in Connecticut.

Offered here is the XK model that cemented Jaguar’s reputation as a world-class builder of sports GTs: an XK150 S in its most powerful, user-friendly, and refined form. This car is an impressive example and comes with a sterling pedigree.