This was the last episode to use the stylized W7 logo. Warner Bros-Seven Arts Inc.
This was J.D. Cannon's last appearance on The FBI. He would later star in the 1970's crime show McCloud.
The car the kidnap victims are in is a Ford Fairlane. The interior changes from a black vinyl to a light brown checker pattern from act to act. Sometimes the interior changes from a view of the people in the front seat to the view of the people in the back seat in the same sequence.
The 1957 Ranchero (yellow/white) appears in the opening scene in Albany New York. The vehicle is later seen in Kiley Texas. Just a coincidence that it appears in the same places as the villain of the story?
Harley and his hostage grab a 1970 Ford Torino GT. A cool looking car of the early 1970's.
The suspect is a classic car buff with a 1914 Ford Model T and a 1940 Lincoln Continental convertible.
inspector Erskine's ride in the end credits is a white 1970 Ford Thunderbird 4-door sedan with a black top and a sunroof.