In 1962 Ford Motor Company introduced a concept car dubbed the Mustang 1. They tested the Mustang II in 1963. Production Mustangs began rolling off the line in 1964 as model year 1965 editions. Was the Mustang a success? Ford hoped to sell 100,000 the first year. After s sales reached one million. America’s “pony car” is still running strong after five decades.