Complex sentence: The Volvo Amazon was a mid-size car manufactured by Volvo Cars from 1956 until July 3 1970, and introduced in the USA, as the "122S" at the New York International Auto Show in April 1959.
Split into simpler sentences: The Volvo Amazon was a mid-size car manufactured by Volvo Cars from 1956 until July 3 1970. It was formally introduced in the USA, as the "122S" at the New York International Auto Show in April 1959.