I just remembered this documentary, I saw it a bunch as a kid... it is called Devil At Your Heels... it is about Canadian stunt car driver Ken Carter who decides he is going to jump a rocket powered Lincoln Mark IV across the St. Lawrence Seaway... it is gold baby, GOLD!!!!
A rocket powered Lincoln Mark IV... it's amazing, the most un-aerodynamic car... it is truly a thing of beauty...
http://www.brainsonfilm.com/devheel.html
For us Canadians it is easily available at the NFB...
http://www.onf.ca/trouverunfilm/fich...=h&lg=en&exp=#