The Sunbeam Mk III was a series of mid-size cars introduced in 1954. Sunbeam-Talbot parent company Rootes Group decided to drop 'Talbot' from the company name, so the previous Sunbeam-Talbot 90 became the Sunbeam Mk III. Like its predecessor, the Mk III was available as a four door saloon or two door drophead coupe, and was fit with a 2.3L inline four engine. Production of the Sunbeam Mk III lasted until 1957.