Hannover: The TW 2000 are built in two main types: the
TW 2000 with two cabins and the TW 2500 with only one and
a door at the other end where you can go into the next car.
Of course, the TW 2500 can be driven backwards for shunting.

Photo by Sven Herzfeld (s.herzfeld@maschsee.han.de)