Minivan. Basically any minivan. Super comfortable, car-like gas mileage, TONS of space for your stuff (and it's secure inside the cabin, not exposed in the bed), most modern ones will easily do 100+ all day, and cops don't look twice at them. Once did 120 in a Pacifica all the way from Pocatello...
SAS (solid axle swap): the act of swapping a solid axle in place of factory independent suspension. Frequently misused to abbreviate the Bronco Sasquatch package.