The Ford Thunderbird (colloquially called the T-Bird) is a personal luxury car produced by Ford from model years 1955 until 1997 and 2002 until 2005 throughout 11 distinct generations. Introduced as a two-seat convertible, the Thunderbird was produced in a variety of body configurations. These included a four-seat hardtop coupe, four-seat convertible, five-seat convertible and hardtop, four-door pillared hardtop sedan, six-passenger hardtop coupe, and five-passenger pillared coupe, with the final generation designed again as a two-seat convertible.

Ford targeted the two-seat Thunderbird as an upscale model, but the design introduced for 1958 featured a rear seat and arguably marked expansion of a market segment eventually known as personal luxury cars. An American interpretation of the grand tourer, personal luxury cars were built with a higher emphasis on driving comfort and convenience features over handling and high-speed performance. From 1968 to 1998, Lincoln-Mercury marketed rebadged variants of the Thunderbird as the Continental Mark III. Mark IV, Mark V, Mercury Cougar, Lincoln Mark VII and Lincoln Mark VIII.

Doing some repairs on wiring under the dash