The Chevrolet Series AB National was a series of early cars introduced for 1928. The Series AB National, also known as the National, was offered in a range of body styles, such as roadster, sedan, tourer, and truck. The National was powered by Chevrolet's venerable 2.8L inline four engine, and only available for the 1928 model year. The AB National was replaced by the Chevrolet Series AC International.