The fourth generation of the Ford Thunderbird is a large personal luxury car produced by Ford for the 1964 to 1966 model years. This generation of the Thunderbird was restyled in favor of a more squared off, formal look. The revised model was initially offered as a hardtop, convertible, Sports Roadster with dealer installed tonneau cover and wire wheels, and Landau with vinyl roof, simulated landau irons, and wood grain interior appointments. Total 1964 sales were excellent: 92,465, up nearly fifty per cent from the previous year. The 1964 Thunderbird was the only car to have the word 'Thunderbird' spelled out on the front hood instead of a chrome Thunderbird emblem. The only transmission available was the Cruise-O-Matic MX 3 speed automatic.