I know I asked for make and designation, but in this case that's a bit difficult to know as I've never seen a designation other than 'Taxi'. So, a Winchester Taxi it is, built from the Sixties and well into the Seventies. It was never a big success because its engine was too low on power, but when the diesel powerplant eventually was replaced with a (not much more powerful) petrol engine it became popular among filmmakers because normal taxis' diesel engines interfered heavily with the sound recording equipment of that time... so that's today's pub trivia.