Although the driving school car 1000 looks quite similar to the GT10NC trams from the 1980s, it was rebuilt from a "classic" Duewag GT6 from 1966. It is recognizable, for example, by the smaller windscreen with separate destination display or the doors with significantly smaller windows. On July 27, 2022, the vehicle makes a short stop at the underground station König-Heinrich-Platz on a driver training trip.