The Jaguar XK150S, produced between 1957 and 1961, represents the final—and most refined—evolution of Jaguar’s legendary XK series. Visually more modern than its XK120 and XK140 predecessors, the XK150 featured a wider body, integrated fenders, and a one-piece curved windshield that gave it a more streamlined, contemporary look while maintaining Jaguar’s trademark elegance. The “S” variant took things further, delivering genuine performance upgrades beneath the bonnet.