The First Generation Of The Ford Thunderbird Is A Two-Seat Convertible Produced By Ford For The 1955 To 1957 Model Year. For The 1957 Model, The Front Bumper Was Reshaped, The Grille And Tailfins Were Made Larger, And Larger Taillights Were Fitted. The Side Thunderbird Script Moved From The Fins To The Front Fenders.