It was a funeral director's local hearse for the trip down to Edinburgh ... it will likely be a different story for the actual funeral on Monday.
K
The boys and girls of the Senior Service will be pulling the Gun Carriage which is tradition since they came to the rescue at Queen Victoria's funeral. The Queen approved the design of the Royal Hearse with big clear windows so all would be able to see the coffin, I guess it will be used again to take her to Windsor from Admiralty Arch.