In October 1964, the final Humber Super Snipe Series V version of the Saloon saw an upper body restyle with a flat roofline and rear window, six-light side windows and a larger, taller windscreen.

Twin Zenith Stromberg 175CD carburettors were fitted along with a Harry Weslake tuned cylinder head, increasing the power to 137.5 bhp, and synchromesh was fitted to all ratios in the gearbox.

Major modifications were made to front and rear suspensions and they required less maintenance.

Intended to match BMC's Rolls-Royce engined Vanden Plas Princess 4-litre R, the Imperial shared the basic specification and performance of the Super Snipe with the addition of a vinyl roof, fully reclining front seats, automatic transmission and hydrosteer power steering as standard.

However, a manual three-speed transmission could be ordered.

The car also featured electrically adjustable rear shock absorber settings, a separately controlled rear passenger heater and optional West-of-England cloth-trimme...