I don't normally take going away shots of DMUs, despite the red tail light generally being the only giveaway (apart from which track they're on, of course!). However, I've got so few pictures of the prototype 210001, that I have included this view taken on 12 September 1985. It shows the unit passing South Moreton with the 2A18 11:01 Paddington to Oxford 'all stations' service.