With the introduction of the series of DB schemes as of 1 January 1968, the head of the train VT 11.5 renumbered to BR 601, BR nine hundred and first to the middle car 1971 directed the DB the intercity system Stadteschnellverkehrs than a system with first-class cars in a two-hour intervals. After a renovation in 1980 was followed in the use of special tourist traffic ('Alpine Lake Express'). Starting from Hamburg and Dortmund perverted the course of tourism in popular holiday destinations southern Germany and Austria.
