Tried to get some quick pics so I put these on my kid's Fastrack. First impressions. Opened box and 2 small pieces of the metal wire like detail came off. Probably just got bounced around with shipping not a big deal. I was able to reattach no problem. A lot of separately added details on these which is very delicate. The ladders, handrails, pieces under the body, and along the body. The car has good weight. Definitely heavier than the Lionel TankTrain cars that connect with the hoses just for a comparison. The only possible issue is coupling height differences between engines. The two I showed were coupled to a Lionel Mopac SD70ACE and Lionel Monogahela ES44 and you can see the difference. Sorry if the post is a mess my first one posting pics lol.