The car was red? Frankly, I don't think I finished watching it.
Does the car have a trailer hitch? A 5ft pipe with a stub bent at an angle on the end stuffed in it, or a fishing pole or something. Extra points if there is a cord looped through the back window so your crew member can fan it from side to side. The picture would go portrait—>landscape—>portrait as it swings back and forth.
If you get your brother to invest some time in the mount then he won't complain about the gas. At least that's the way I think brothers work.