GT4 (Bremen)

In Bremen, like at the same time in Stuttgart, articulated cars on only two bogies were constructed by the local manufacturer Hansa Waggonbau.

All the Bremish cars were designed for unidirectional traffic (doors only on the right side), so that they required loops on the ends of their courses.

After the decay of Hansa Wagonbau, since 1973 the Wegmann & Co. railcar company in Kassel continued the production of trams for Bremen.

The Bremish Wegmann articulated tram was also produced as a trailer (types GB4d to GB4f, in all 47 items).

In 1986, two of these Wegmann cars were enlarged by interposition of a third segment, also with two doors and three windows on the right side.