The 19th May 2017 was the last day that first-generation DMUs ran in regular passenger service on Network Rail. These were the two class 121 Bubble cars owned by Chiltern Railways that were used on the Princes Risborough to Aylesbury branch. To record and commemorate the event, Video 125 cameras followed the single units (affectionately dubbed Bubble Cars) in the weeks prior to their withdrawal. The idea for this film... see more