Jules Verne Train
From Futurepedia, the Back to the Future Wiki
The Jules Verne Train was the culmination of Emmett Brown's previous experience with building the DeLorean time machine and working with the steam locomotive that pushed it to 88 mph. It was a time machine itself that ran off of steam rather than gasoline, built from after 1885 to 1895. When Doc succeeded in its first temporal displacement test, he and his family traveled to 2015 or beyond to give it a hover conversion.
The flux capacitor was still included in this design, in the place of the lamp at the front of the locomotive.
When Doc returned to 1985 to meet up with Marty McFly and Jennifer Parker, he chose the most likely place that they might be at that given time. Interestingly, before it appeared, it triggered the bells and gatearm on the nearby railroad crossing as if another train was coming.
[edit] Behind the scenes
Production designer Rick Carter while designing the look for the train became inspired by the Nautilus from 20,000 Leagues Under the Sea, which seemed an obvious choice considering Doc and Clara's love for Jules Verne.
