Save your money to invest in a good model, because this isn't it. I have several Con Cor passenger cars (old time) and they're pretty nice for the price and fill the bill quite nicely with few needed improvements. I have only one Con Cor freight car and it is this model. There is a reason why I have only one. Outside of some better than usual under car detail the rest of it screams cheap-o. Cheap wheel sets, cheap couplers, cheap trucks. Worst of all you can't even change out the trucks because they have a cheap plastic rivet (for lack of a better term) assembly (not screwed on) nor can you change out the couplers. This is an overpriced toy, not a decent scale model. Treat it like a rattlesnake.