standard Bentley and Rolls-Royce models; this Bentley S differing only in its radiator grille shape and badging from the Rolls-Royce Silver Cloud I.

The models shared the 4.9 L (4887 cc/298 in³) straight-6 engine. They were the last vehicles to be powered by descendants of the engine originally used in the Rolls-Royce Twenty from 1922 to 1929. The bore was 95.25 mm, stroke was 114.3