Tyres etc. service since 1934.

Listed as 408 London Road in the 1952 Chamber of Commerce, the 1971 telephone directory and shown in this ad from 1963:

ad from Mitcham and District Advertiser, 3rd January, 1963.

Proprietor A. PAYNE

According to the MGM Services website:

When the owners retired around 2013 the premises of Mitcham Tyre Mart at 339 London Road, CR4 4BE, were taken over by MGM.

Screenshot of MGM Services website, dated 2013, in case it is taken down.

See also MGM Automobile Engineer