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.

The 1966 Chevrolet Impala SS 427 sits at a crossroads of big-block power and full-size comfort that still intrigues ...

Chevrolet’s 427 big-block was the kind of engine that made full-size cars snarl at stoplights and eat pony cars for breakfast. In 1966, the Impala SS convertible could be optioned with this monster in ...