...namely, Lynda Carter clips.
Yes, the drive-in screen practically explodes from the combined charisma when Marjoe Gortner joins Our Lynda on a rebels-on-the-road car-chasin' shoot-'em-up. Presumably AIP honcho Sam Arkoff decided he wanted yet another redneck action movie, and when Peter Fonda and Claudia Jennings weren't available it was decided to call in the B Team.
I've actually seen this and though I remember absolutely nothing about it, it at least hasn't seared itself into my brain like the horror of Lynda's variety specials. So, you know, that's something...