Just wondering if anyone has attempted to do a transition car so regular Bachmann rolling stock can hook up to the Rail Champ/Rail Express rolling stock.  The couplers look really close to NEM couplers used Sachsenmodelle and Piko.  I did rig up a paperclip/bulldog clip adapter on the front of a test 40' EZ-Mate Bachmann gondola, with the paperclip end bent to go into the battery operated engine's receiver.  I will admit, on flat surface, that Rail Champ engine pulled a consist of 10 Bachmann Spectrum rolling stock.  But the Engine needs a sander option to pull up a grade though.  LOL  My 4 year old has his eyes set on my test, damaged, and just plain POS rolling stock box for "his" train.