If I may present a counterpoint to the 100% success rate:
www.youtube.com/watch?v=2igR...

Original face textures by @tinesaeriel.bsky.social

Perhaps they specifically wanted rolling stock for whatever reason - maybe bc Harvey's historically been difficult to integrate into motorised ranges, or just to suit whatever story Jay debuts in

In my mind's eye he looks something like this: a four-wheeled railway crane that can easily fit into a smaller pack and works as an independent character, since Rocky's quite big and Judy/Jerome are a duo

omg the tiny chassis Toby I love him