“The industrial designer Robert Zeidman invented this “civilian amphibian” after seeing experimental vehicles emerging from the sea during World War 2. This luxury 34-foot campervan features a built-in bar, space for marine equipment, and a convertible lounge compartment that opens up at the sides to become a fishing cockpit. There is also room in the driving compartment to create a bunk for your chauffeur-pilot if you’d prefer to spend your journey watching the built-in TV rather than driving.

Look at the outside of the ‘Vacationer,’ and it’s clear Zeidman was a veteran of the military rather than, say, Chevrolet. But experienced yacht builders advised him on the interior, which is a model of post-war domestic convenience. It features cutting-edge lighting solutions and seats that conceal special heaters for keeping meals hot.”