The start of another great thread?
A Land Rover with an EV conversion and kids-these-days stance. Hardtop replaced with a camper shell made from Oak plywood; drop sides with bunks and Coroplast accordion tent over drop tailgate.
inhabitat.com/...designs-for-when-disaster-hits/
Pull the bottom in and you have a boat tail, pull it out and you have a stand-up shelter. Solar plus microgrid.