At the time of filming, home movies by Ron Howard's family show that Barney's car was not black, as it appears on screen, but a medium-dark blue color.
One of only a handful of episodes in which Barney takes his bullet from his shirt pocket and loads it into his revolver.
Barney only considers buying Ford products. Ford was the automobile sponsor of the show.
This is actually not Barney's first car. In "Runaway Kid," Barney owns a 1949 or 1950 four-door Ford sedan. Andy and Opie begin to push it in front of a fire hydrant as a prank, but Barney catches them in the act. This scene, because it is the epilogue (the scene after the last commercial break and before the closing credits), is usually omitted in syndication.