Something came to mind after watching BTTF III
8 years ago
After a fuel line breaks on the Delorian in the old west I couldn't help but think if fantasy mirrored reality a bit better rather than flying car conversion it would have been an electric conversion. Only two years removed from 2015 and we see electric cars that could run circles around the gas powered Delorian. And everything would have been run off a smart phone rather than a circuit larger than the laptop I am currently typing on. The homemade fusion generator is still a work of fiction but go far enough ahead in time and there could be conventional ways of creating or storing 1.21 jigawatts of power (WHAT THE HELL IS A JIGAWATT!?) in something no bigger than a household appliance.
Either way I think the Delorian would have come back fully electric with enough memory and power to be fully self sustaining.
Either way I think the Delorian would have come back fully electric with enough memory and power to be fully self sustaining.
FA+

That's a good question. Why didn't Doc Brown just ditch the ICE entirely as soon as he reached a time period with sufficiently advanced technology? I get the sense the time machine was a barely-functioning machine that had its limits pushed with every trip. Time travel is clearly demonstrated to be dangerous and at the razor-thin edge of possibility. We don't know how it was built. The machine may have been engineered in such a way that the time circuits were intimately tied in to every other component; maybe the engine could not be changed without having to completely rebuild the machine. Maybe the electrical field of Lithium batteries would interfere with the flux capacitor. Or the chronofluid would react adversely with the iono-floozer and I don't have to tell you what would happen then. Great Scott!
There's plenty of ways to hand-wave an explanation, but ultimately the reason is this: Because the plot demanded it.