The Chevrolet Impala carries a name borrowed from an African antelope and a backstory that started as a Corvette-inspired concept car nobody expected to reach production. From a 1956 Motorama prototype to becoming America’s best-selling car by 1965, the Impala’s rise wasn’t guaranteed at any step along the way. Read on to see how a styling sketch turned into one of the longest-running nameplates in Chevrolet history.