The Jaguar XK120 is a British sports car produced from 1948 to 1954, introduced at the 1948 London Motor Show as a showcase for Jaguar's new twin-cam XK engine displacing 3.4 liters. The designation "120" referred to its claimed top speed of 120 mph, which made it one of the fastest production cars available at the time of its launch. Initial production used aluminum bodywork over an ash frame, but Jaguar transitioned to steel body panels in 1950 to meet demand that far exceeded original expectations. Three body styles were offered across the production run, an open two-seat roadster, a fixed-head coupe introduced in 1951, and a drophead coupe introduced in 1953, with a higher-output Special Equipment version available across variants.
