Car 1M1655, manufacturing date July 17th, 1970. It was built for mr. Gervais Bahizi, the Congolese ambassador in London.
This is a press photo from a larger series 207151-207156, but its exact number is unknown.
Obviously, the photographer could have chosen a much more suitable background.
This photo is not in my collection; the image shown here was copied from a magazine article.