As of 2020, what car sold more than one million units in the U.S. in 1965 and still holds the record today?

The Chevrolet Impala is an automobile built by Chevrolet for model years 1958 to 1985, 1994 to 1996, and 2000 until 2020. It was full size except in the years 2000 to 2013, when it was mid-size. The Impala was Chevrolet's popular flagship passenger car and was among the better selling American-made automobiles in the United States.

Redesigned in 1965, the Impala set an all-time industry annual sales record of more than 1 million units in the United States. All new full-size Impala's eschewed the "X" frame for a full-width perimeter frame, a new body that featured curved, frameless side glass (for pillarless models), sharper angled windshield with newly reshaped vent windows, and redesigned full-coil suspension. As of 2020, no other vehicle model manufactured in the world has recorded more annual sales in one year within the United States.