I saw an Amfleet coach on the California Zephyr #6 (13) today on its way to Chicago. I believe this is what is know as "deadheading." Also, does this have anything to do with the Reno Fun Train?
http://www.youtube.com/watch?v=kOe4G9jvQ0I
http://www.youtube.com/watch?v=kOe4G9jvQ0I