The Classic Chevy Model is a popular car model from the 1950s and 1960s. It includes two models, the IMPALA (6 letters) and the NOVA (4 letters). The IMPALA was first introduced in 1958 and was produced until 1985. It was one of the most popular cars of its time and is still sought after today. The NOVA was introduced in 1962 and was produced until 1979. It was known for its affordability and reliability. Both models are considered classic cars and are highly sought after by collectors.