The Jaguar XK150S OTS (Open Two Seater) is a significant model in the history of British sports cars, representing the evolution of the Jaguar XK series. Launched in 1957, the XK150 was an upgrade from its predecessor, the XK140, and it featured several enhancements in design, performance, and comfort.

The XK150 was notable for its more modern styling, which included a wider body and larger windows, providing improved visibility and a more spacious interior. The "S" designation indicated a higher performance variant, equipped with a more powerful engine. The XK150S was fitted with a 3.4-liter or 3.8-liter inline-six engine, capable of producing up to 250 horsepower, allowing it to achieve impressive acceleration and top speeds for its time.

The OTS variant, being an open two-seater, appealed to enthusiasts who valued the driving experience and the connection to the road that a convertible offers. The XK150S OTS combined luxury with performance, featuring leather upholstery, a well-appointed dashboard, and advanced engineering for its era.

Production of the XK150 continued until 1961, with a total of around 9,000 units produced across all variants. The model is celebrated not only for its performance but also for its role in establishing Jaguar as a prominent name in the sports car market. Today, the XK150S OTS is highly regarded among collectors and classic car enthusiasts, symbolizing a golden era of automotive design and engineering.