I've been saving mine, waiting for the fashion cycle to swing my way.
Get an EV and find a couple of those 10-hp Stirling generators that Philips made for Winnebago back in the '70s (quiet, on-board electical generator). Put them on a trailer and hook up cables to your batteries. Then you can just pull off the road and shovel in some wood chips, bird poop, or whatever, and go another 100 miles.