From the mid-1950s diesel multiple units began to appear in Scotland, firstly on the main line between Edinburgh and Glasgow Queen Street and later on many secondary lines. More DMU units began to appear from the early 1960s with the gradual withdrawal of steam locomotives. Possibly the ultimate in the DMU development was the InterCity DMU, later numbered as Class 126. With the expanding motorway network, many branch lines could not be saved and the Beeching axe fell on many of them. The first generation of Scottish DMU fleets never established the huge following and interest that the diesel and electric locos did. Here, Colin J. Howat covers virtually the whole of Scotland and encompasses locations from Arbroath in the north to just south of the border in Carlisle. This book covers diesel multiple units from Metro-Cammell Class 101s up to and including Swindon InterCity Class 126s.