...the problem is that everyone is telling their version of what happened. Kinda like having a joke told to ya by 7 people all at the same time and all correcting each other whenever they take a notion. This is combined with the media desire to get the story first no matter how much of it they have to make up.
As for the ability to propel itself I doubt it. The balloon(s) were above 20,000 feet which would put them in the jet stream and the jet stream travels between 110 and 250 mph. If it had a big enough motor and enough fuel to overcome that, it could not get off the ground.
Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!