Arriving in 1957, the XK 150 would be the final incarnation of Jaguar’s “XK” series of sports cars. As its name suggests, the new model was a progressive development of the XK 120 and XK 140; although it retained the same basic chassis, 3.4-liter engine, and four-speed Moss transmission of its predecessors. The newer model benefited from a new, wider body that provided increased interior space and improved visibility courtesy of a single-piece wrap-around windscreen.

Cleverly, the new body used many XK 120/140 pressings, the increased width being achieved by means of a 4-inch-wide central fillet. At 210 bhp, the standard 3.4-liter engine’s maximum power output was identical to that of the XK 140, but the new model’s main talking point was its Dunlop disc brakes. Fade following repeated stops from high speed had been a problem of the earlier, drum-braked cars, but now the XK had stopping power to match its prodigious straight-line speed.

Produced in Jaguar’s workshops during the fall of 1957, this XK 150 coupe was the 339th example built. The new Jaguar was equipped with left-hand drive steering and overdrive. The car sat in a barn near Gaston, Oregon, for decades, but was recently treated to thorough detailing. The beautiful red interior appears to have been redone at some point, while the exterior shows minor cosmetic flaws, but is in overall fair condition. It should be noted that the cylinder head appears to be off a later XK 150 engine and does not match the original engine block number.

Having sat without running for several years, the Jaguar could benefit from a mechanical sorting prior to being put back on the road, where it would surely impress its next caretaker.