Cadillac El Camino Concept, 1954. A GM Motorama show car previewing many styling features that appeared on production Cadillacs throughout the 1950s including quad headlights, the shape of the tail-fins and bullet tipped bumpers. It was finished in silver-gray with a brushed stainless-steel roof. The El Camino name was later used on generations of Chevrolet pick-ups. El Camino is short for the Spanish el camino real, the Royal Highway, alias Californian Highway 101.