The Ultimate “End of the World” Vehicle

Recently John and I got onto the topic of “End of the World” vehicles (Editor’s note: For certain values of “recently”). Would a big RV work? It has lots of space, though it has poor gas mileage and isn’t very maneuverable. What about a big pickup truck? Lots of cargo space, better gas millage, can store more fuel, but still not very maneuverable. Motorcycle? Ultra good gas millage, but very...