The two Uhlenhaut Coupe prototypes were consigned to Mercedes' non-public classic collection, where the second prototype will remain. One of the conditions of the sale is that the car "will remain accessible for public display and special occasions," Marcus Breitschwerdt, head of Mercedes-Benz Heritage, said in a statement. So the now-privately owned Uhlenhaut coupe might actually see the light of day more often than it did while owned by Mercedes.