Timeline July 1926: Ford decides to proceed with a Model T successor. May 26, 1927: Ford builds the 15 millionth and last Model T. Oct. 21, 1927: Ford builds a pilot Model A. Dec. 22, 1927: Ford introduces the Model A. August 1931: Ford builds the 5 millionth and final Model A.
As successful as the Model T was, it overstayed its welcome.