Turns out, you can daisy chain vehicles in this game, lol.
So I was messing around with vehicles and turns out, I can just daisy chain a bunch of them together. Well, the ones that have a tow option anyway. Ambulance and Mustang don't. So I left the mustang at my secondary base and have the ambulance attached. I don't know if keeping the headlights on drains the fuel or not.
I have a very nice base setup in the abandoned warehouse next to Whitewood but still, it feels fun to be a nomad. And while we have infinite storage with Backpack in backpack, it's still nice to have a lot more extra space to organise stuff. I'm about 30 hours in and have yet to explore the map fully, can't believe this is an indie game.