The first city rail in Hanover – delivered 1974 and taken into service 1975 - ushered in a new ÜSTRA era and changed its appearance fundamentally. The green colour chosen by Professor Herbert Lindinger for the new city rails became in short time the identification colour of the ÜSTRA, that characterise it to this day. With its clear design, the TW 6000 has not gone out of fashion to date, but is still „modern“ in the classic manner. A lot auf passengers are still real fans of the 40 years old TW 6000.