From London: "The Ghost Bus of Ladbroke Grove," by MJ Wayland

This story was originally posted as “The Ladbroke Ghost Bus of London” by Martin Jeffrey at this address: http://www.mysterymag.com/hauntedbritain/?page=article&subID=78&artID=274. That link no longer exists. A Google search resulted in the identical story posted in 2013, but with a different author. 

In the middle of the 1930s a large red London Bus, bearing a “7” route number harassed motorists in the North Kensington area of London. (Read more here.)