A well illustrated review and history of the French Class X 73500 DMU family, introduced into service from 2001 onwards. Looks at the trains they replaced, before looking at the development of the X 73500 units. Also follows the working lives of the units with SNCF through to the present day. Includes vehicles built for CFL (as Class 2100s) and DB (as Class 641s). Illustrated throughout with colour photographs and diagrams. French text. 98 pages.