The Chevrolet Nova or Chevy II was an American compact car introduced by the Chevrolet division of General Motors in 1962. The original Chevy II was of unibody construction, powered by an OHV inline four or six-cylinder engine, and available in two-door and four-door sedan configurations as well as convertible and station wagon versions. After the rear-engine Chevrolet Corvair was handily outsold by the conventional Ford Falcon in 1960, Chevrolet began work on a more conventional compact car that would eventually become the Chevy II.
Source: Wikipedia