Our 6.5 year old son insisted on this from Santa this year. He really liked it and is playing with it on the Lego track we bought. We did not get the motors for this and they are not included. Maybe we'll switch to an engine, but now he's fine without it. He could assemble most of the engine and almost the entire coal truck and bus himself. So, I think if you're buying this for a "Lego-savvy" kid, you might go under the age listed on the box.
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