ghostly mist?

This is a car advertisement that was never released. Watch your screen closely with the SOUND ON.... When the film crew finished filming the car ad, the people who edited it noticed something moving along the sideof the car, like a ghostly white mist. The Ad was never put on TV because of the unexplained ghostly phenomenon frightened the production team out of their wits. Watch closely as the car comes from behind the trees about halfway through the commercial, look closely, its hard to catch, and you will see the white mist crossing in front of the car, then following it along the road


http://www.big-boys.com/articles/boooo.html