This is a non powered second car to complement the drive car,it will require a chassis and bogies to complete.I have made a basic chassis on a 3 d printer and attached a set of KATO 11-035 bogies and found it runs fine.The bogies will have to have the small copper bits sticking out of the top cut off and smoothed over to let them turn .To increase the length of the train just add more of these models.This is not an exact 148th scale but very close .