This lots-of-bodies-just-one-chassis idea was best done by Citroen with the 2CV. Upon that clever little platform were 2CVs, right from the start, 1948 to 1990, - several types of 2CV van, the Mehari jeep-type vehicle, the Ami, in all its guises, including a station wagon, the Dyane, in all its guises, the Acadiane vans of differing sizes, not to mention many independently-manufactured vehicles/kitcars using the same base and suspension. I doubt that any other vehicle has ever had such a versatile chassis.