Chevrolet AB National

The Chevrolet Series AB National (or Chevrolet National) is an American vehicle manufactured by Chevrolet in 1928 to replace the 1927 Series AA Capitol. Over three-quarters of a million Series ABs were manufactured in a variety of body styles.

Specification
Looking very similar to the 1927 Series AA Capitol, the wheelbase of the Series AB was increased by four inches to 107 in (2,718 mm). The updated look was one of the first projects from GM's Art & Colour studio.[1]

The Series AB was powered by Chevrolet's old 171 cu in (2,800 cc) four-cylinder engine, but with minor modifications to produce 35 hp (26 kW) at 2,200 rpm. Four-wheel braking was also now provided.