These trains have been track tested and work as they should. The smoke modules were not tested as I do not have any fluid on hand. These trains do have some scuffs and scratches and dust from years of sitting. I have cleaned them fairly well, but they might benefit from a good detailing. The body of the FB-1 is from the New Orleans Northeast line. In 1990 it became the Norfolk Southern railway. The body color is white. The body of the FA-1 does not have art on it and is the body color is gray. Please see photos and send any questions.