Buckingham Palace or Downing Street perhaps ? Years ago my father had a Rover 3-litre, which at the time was the preferred transport for government ministers and officials. Not being too familiar with central London he took a wrong turn and came out through an archway - possibly the one between HorseGuards and Whitehall that the Queen's coffin was taken through en route to Westminster Hall. The guards duly saluted as we passed them !
Richard Greenhough ● 1466d