There was a detective_conan filler episode that was in a hotel with a few antique cars on display. I guess that isn't uncommon in Japan--chain hotels aren't as common there, and owners are at more liberty to decide what to put there.
What's with this hotel...?※Real ThingWhy is there something like this in the lobby...?Harley DavidsonWhew, we're here.Mysterious ComboA certain hotel.CH-47 Chinook※Model