Curious, what's the exact difference in the packs? I'm guessing the base packs are just a few models with autonumber, and the bigger packs have only specific locomotives, or does it also have the autonumber engines along with specifics, or what's the full deal?

Hello. Just bought the Viewliner Baggage Car. Went to download the skins for it, and it links to the Amtrak P42 Sounds pack. Thought I'd point that out.