I would think being car jacked would probably be one of the worst things that can happen to a person in their car. I already told a story earlier where I had a guy at my drivers side window with his fist cocked back about to punch me in my face. A device like this could come in hand in these types of situations. I already got half of what is needed. Back when I was in highschool, I wanted to make a lethal car security systems company. I failed myself and society in general when I didn't follow through with it, but the motto of the company would of been "Because your car, is worth more than their lives..."