mythbusters if fun to watch, but they don't always get things right. remember the one with the chain wrapped around the rear axle as in american giaffiti?(sp?) not only did they test a different brand of car, it had a different suspention style i do beleave.
sandblasting the PVC pipe, shooting a man out of a sewer pipe, and the bird hiting a plane are also some i object too. like i say fun to watch, but don't trust the info. a restircted exhaust will in fact cause a car not to start. if the potato doesn't fly out, the engine will not start, or even if it does, it will run worse then crap.