British Rail Class 109

The British Rail Class 109 is a class of 2-car diesel multiple units built in 1957 by Wickham & Co.  Five two-car units were built featuring an unusual body design.

109
The units soon became non-standard and two were sold back to the manufacturer who exported them to Trinidad and Tobago.  Another unit was converted into departmental service, and survived in BR ownership until the early 1980s.