I use my Box as a RV.
Well sort of.
I just got back from a 6 day road trip, Skyline drive, Blue Ridge Pwy, Cherohala Skyway. Camped 5 nights.
So tarps, poles, ropes, tent, folding chair, air mattress, clothes, saw, camp/cooking supplies, food, tools, spare parts, car fluids, human fluids.
That's both trunks and the passenger seat.
Full tank of gas and that is one way to lower the car.
Did the Tail of the Dragon 3 times with all this weight.
One leg of the trip I had 2 bundles of firewood as well - Gotta have a fire and a cigar at night
Unfortunately there isn't enough room for another person, so went solo
Full shopping is never a problem except don't put the ice cream in the rear trunk
This is one slick camper