sentences:  Statesman engine designs were based on the sturdy and reliable decades-old L-head Nash Light Six engine designed in the 1920s and continuing into the 1940s in the Nash LaFayette and Nash 600, remarkable in itself for the lack of intake and exhaust manifolds.Because of the Statesman's lighter weight, high fuel efficiency was reported by owners and testers.Nash Statesman models were offered in three sub-series—the top-line Statesman Custom and the entry-level Statesman Super and also a base fleet-only model built for commercial and institutional use.