The Piccadilly Transportation Museum in Butte, Montana is a small museum focusing on automobile memorabilia. In addition, they do have five cars on display.
Museums 101: Packards in America's Car Museum (Photo Diary)
Museums 101: Extinct Automobiles of the 1930s (Photo Diary)
LeMay Family Collection: Cars of the 1930s (Photo Diary)
LeMay Family Collection: LeMay Hall (Automobile Photo Diary)
Museums 101: Automobiles of the 1950s (Photo Diary)
Museums 101: The Montana Auto Museum (Photo Diary)
Museums 101: A Collection of Automobiles (Photo Diary)
Museums 101: Classic Auto Museum (Photo Diary)