Merthyr Imp
Member
More an addition than a correction, London Transport RMF 1254 was built as a 30 foot example with a front, doored, entrance as an experiment, and was fitted with a tow bar at the rear. This predated the BEA order but doubtless influenced BEA's thinking, and came not too long after the delivery of the first batch of RMLs, 880-903, for conversion of trolleybus route 609 at Finchley to the 104 bus route. I stood for several hours at Finsbury Square in the City of London on its first Sunday of operation!
RMF1254 with luggage trailer at Heathrow in August 1964: