The 1966 Ford Mustang Fastback represents one of the most iconic expressions of the first-generation Mustang, combining sleek fastback styling with serious performance credentials at the height of the American muscle-car era. Its sweeping roofline, muscular rear quarters, and competition-inspired profile made it the enthusiast’s choice over the standard coupe. The Fastback platform also formed the basis for the legendary Shelby GT350, a homologation-focused performance variant developed for racing and high-performance road use, which cemented the Mustang’s motorsport credibility and elevated its reputation worldwide. Offered with a broad range of engines — from economical inline-sixes through to potent small-block V8s — the 1966 Fastback combined everyday usability with muscular looks and strong all-round performance.