This 1977 Pontiac Firebird Esprit in Buckskin Gold carries a direct link to The Rockford Files, the car James Garner’s character made famous on TV. But its history runs deeper than a screen connection – a mid-1977 factory supply shortage quietly swapped the engine spec partway through the model year. Add the redesigned square-headlight front end and rare option packages like Skybird, and this Esprit turns out to be more complicated than its laid-back reputation suggests.