Death Sport was called a sequel to capitalize on the success of the earlier film. Both have David Carradine, and I think the crowd scene/matte shot of the arena are reused, but that’s just producer Roger Corman’s frugal ways. A super cheap motorcycles and explosions movie with psychic swordfights and death rays thrown in. Also contains one of the fakest lopped off head props you’ll ever see outside of a Hershall Gordon Lewis flick.
And isn’t that supposed to be a Nazi V-1 “buzzbomb” on the back of Mathilda’s car? I took it that the stuff on the drivers cars were merely decoration fitting with the character of each driver.
Of course, it would have helped if the people responsible had taken an effort to make the props we were supposed to view as such and the props we were supposed to believe somehow distinguishable (ie. made the cars’ decoration less believable, or the ‘hand-grenade’, the TV-cameras, all of the rebels’ secret base etc. more believable).
This movie was almost never completed. Carradine was such a demanding diva that the production was briefly shut down. It was only after Carradine sent the director a VERY apologetic letter that the production was resumed.