The Impala was already the best-selling model in the United States, and 1965 witnessed a major achievement. It became the first car in the country whose shipments exceeded 1 million units in one year.

Chevrolet Impala reached an all-time sales record in 1965 when it managed to become the first car in its domestic market to sell more than 1 million units in a single year. While this was a fairly ...