The series name One-Twenty officially became hyphenated for model year 1940. Again, the One-Twenty came in a full array of body styles, including a semi-custom Convertible Victoria by Howard “Dutch” Darrin. Introduced in August 1939, total model year output was 28,138 units.
In its final year as a model, the One-Twenty lost a number of body styles to the expanded One-Ten line of cars. The One-Twenty was available in business coupé, club coupe, two-door sedan, four-door sedan, convertible coupe, convertible sedan, and two station wagon styles. Production sank to 17,100 units.