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 ...

The 1966 Impala SS 427 sits at a crossroads of American muscle and full-size comfort, combining big-block power with everyday ...

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.

Our feature face-off this week involves a slick 1963 Chevy Impala SS convertible and a bright-red 1967 Pontiac GTO convertible. Let’s cover some history before we take a look at our competitors. The ...