According to their page:
We have two fully accessible supersonic jets for you, the Concorde and Tupolev TU-144, located on the museum roof. There is something for everyone to discover in the exhibition halls, hundreds ofclassic cars and motorcycles from all eras, huge steam engines, formula 1 legends, classy sports cars, record-breaking vehicles like the Blue Flame or Brutus, farming machines, giant engines, a military history exhibition, and much more. A visit to the IMAX 3D movie theatre is an unforgettable experience, featuring exclusive 3D films on a screen as high as a house.
(approximately 2 hours and 20 minutes from Bonn)