Autotrain

The Autotrain was a type of passenger train used in the early 20th century, where the steam locomotive could be remotely controlled from the rear of the train. This meant that the engine would not have to run-around at the end of a journey before returning. These trains were also known as motor trains or railmotors at the time, but the term railmotor is now used to refer to trains where the steam engine was integrated into the coach.