For Sale: 1958 Jaguar XK150 in Saint Louis, Missouri

Few postwar British sports cars combine elegance, performance, and long-distance touring capability quite like the Jaguar XK150. Introduced in 1957 as the final evolution of Jaguar's celebrated XK sports car line, the XK150 refined the formula established by the XK120 and XK140 while preserving the dramatic styling and powerful inline six-cylinder engine that had made the series famous worldwide. By this stage of development Jaguar had transformed the XK into a thoroughly mature grand touring machine, offering improved braking, greater comfort, and stronger performance while retaining the effortless character that made the earlier models so beloved.
For enthusiasts seeking the ultimate expression of the model, Jaguar offered the XK150 S, the most powerful and sporting factory specification available. Equipped with a high-performance cylinder head and triple SU carburetors, the "S" engine delivered substantially increased output and sharper performance while maintaining the smooth, flexible nature that defined Jaguar's legendary XK powerplant. Combined with the XK150's revised bodywork featuring a one-piece curved windshield, wider grille, and improved cockpit ergonomics, the XK150 S represented the pinnacle of Jaguar's classic front-engined sports car before the arrival of the E-Type in 1961.
This particular 1958 Jaguar XK150 S Roadster was dispatched from the factory on September 29, 1958, and distributed through Jaguar Cars of New York. The JDHT Certificate on file notes the cars' original specification of black/black/black. Today it is presented in a striking and traditional color combination of Carmen Red over red and black leather, complemented by a matching red convertible top. The bold colors suit the sweeping lines of the XK150 S particularly well, emphasizing the car's graceful proportions and unmistakable British sporting character.
Over the years this XK150 S has been thoughtfully prepared as a highly usable and enjoyable touring car. While the model was originally delivered with the 3.4-liter engine, it is now powered by a XK150 S motor stamped VS1316-9 that has been rebuilt and enlarged to 3.8 liters, and is mated to a Tremec 5-speed gearbox. The engine rebuild was performed by a respected Jaguar specialist, and benefits from numerous performance and reliability upgrades designed to enhance both drivability and durability.
Induction is handled by triple SU HD8 carburetors, while the engine features a number of internal upgrades including an improved crankshaft, upgraded pistons, revised camshafts, and a lightened flywheel. Together these enhancements combined with a stainless-steel exhaust deliver stronger performance and more immediate response while retaining the smooth, effortless character that defines Jaguar's XK engine. A TIG-welded aluminum radiator improves cooling efficiency, and a replacement wiring harness further supports dependable operation.
The chassis has likewise been upgraded with Spax adjustable shock absorbers, helping provide confident handling and a composed ride during spirited driving or extended touring. Brake work performed in 2022 further contributes to the car's well-sorted character, ensuring strong and predictable stopping performance.
Inside the cockpit, the red and black leather interior presents very well, with the seats recently reupholstered to a high standard. The cabin maintains the classic Jaguar atmosphere with traditional instrumentation, while an XM radio and GPS speedometer provide convenience and accuracy for modern driving. The overall presentation remains faithful to the XK150's original spirit while subtly incorporating improvements that make the car easier and more enjoyable to use today.
Under the bonnet, the engine bay is clean and tidy, reflecting careful maintenance and thoughtful preparation. The mechanical upgrades have been carried out with a focus on real-world drivability, making this XK150 S particularly well suited for enthusiasts who value time behind the wheel as much as time on display. Accompanying the car is its tool kit, service manual and Jaguar Daimler Heritage Trust certificate, further supporting its appeal as a well-prepared and usable classic sports car.
Today this XK150 S presents as an attractive and thoroughly enjoyable example of Jaguar's iconic grand touring machine. With its striking colors, upgraded 3.8-liter engine, and thoughtful touring-oriented enhancements, it offers the opportunity to experience the timeless appeal of the XK series in a car that is ready to be driven and enjoyed.


Offers welcome and trades considered.