Mercury S-55. 1966 (prod. 2,916 hardtop, 669 convertible). 2-door hardtop, 2-door convertible. F/R, 428 in³ (V8). Originally a part of the Monterey range, S-55 “muscle car” (428 in³ quoted at 405 hp) returned in 1966, after two-year absence, as a separate line. Lincoln Continental-type styling. Very rare. Independence was short-lived: S-55, with slightly different styling, went back to Monterey range in 1967 (and proved rarer still).

Manufacturing location: St Louis, Missouri, USA

Marque: Mercury | Predecessor: Mercury Monterey (1960–4) | Successor: Mercury Monterey (1965–8)