Marks & Spencer boss Stuart Rose and the retailer’s celebrity face Twiggy unveiled a revamp of its historic Oxford Street Pantheon store on Wednesday.

The modernised shop carries a wider range of clothing, as well as beauty, home and technology ranges. The store is the first to offer M&S’s complete food-to-go range.

Measuring 75,000 sq ft, the Grade 1 listed Pantheon was built in 1770 in the style of a Roman temple.

Owned by M&S since 1937, it survived a bomb during the Blitz.

M&S is to open a 700 sq ft shop carrying its food-to-go range adjacent to its High Street Kensington store next spring. The store will have a separate entrance.