It's the very first body style the Nova was built in (back then known as the Chevy II). The drawing turned out great.
Something I remember as a very young cub was being so impressed by how big American cars were...especially the newer ones that had those big fins. It wasn't very long afterwards when cars like; Chevy II, Ford Falcon, Corvair and Dodge Dart began rolling off the assembly lines and hitting the roads (Studebaker and Nash had already been around), it was then I thought, "The American car makers really are making smaller cars after all".
It's the very first body style the Nova was built in (back then known as the Chevy II). The drawing