The car Jim Kelly's character drives is a 1972 Ferrari Dino 246 GTS. Since the license plate is shown on screen in the film and reads "JIM KEL", it may have been Jim Kelly's personal car.
Jim Kelly worked with director Al Adamson again in Death Dimension. Both are James Bond style films; in fact the latter includes the actor who played Odd Job while this movie has a jet-pack straight from Thunderball.