To clarify, there is only one route in the US that has an auto train. It goes from Lorton, VA (about 30 minutes south of DC on I95) to Sanford, FL (a suburb of Orlando), and in the other direction. It has sleeper berths or regular coach class seats, leaves at 4pm and arrives at 9 am, and is generally full of "snowbird" retirees and families going to Disney.