After the TV series ended, Bud and his son David Lindemmann continued to film many types of racing.
In the later years, the original music came from numerous southern sources with everything from country to styles that are reminiscent of Jimmy Buffett.
Footage was also shot from the 1974 Yankee 400 that was used in the show's main title sequence indicating sponsorship of the series by Blue Max automotive products.
In one 1971 episode actor James Garner was accompanied for high-speed safety training at the Skip Barber Racing School behind the wheel of an Oldsmobile Cutlass.
As in today's car testing methods, the vehicles were usually the highest level furnished of the model, or in some instances prototypes.
Many of the tests were filmed on the Waterford Hills Road Race Course in Clarkston, Michigan (just north of Detroit).