I watched that episode but obviously missed the car part. There was a distributor at the bike rally that was selling butt pads made of that stuff. He did the same demo both with his hand and M&M's. Pretty impressive. I don't know about driving over it with a car. Absorbing shock is one thing, but pure weight is something else, altogether. He did mention that the company got a deal to provide boot inserts for the military. There's some $$ for you!