Awesome concept, but if instituted, a hacker would have access to you cars battery, and could empty your car's battery if they wanted, perhaps even gaining the money that got transferred back into the system.  And if you wanna go all out conspiracy, then the government would have control of when you can run your car and when you can't.,(reply>), So I'm guessing you also don't use bankcards.... they're just as vulnerable to your hypothetical hacker.<br><br>Seriously, this "fear" would sound too stupid for a B movie.,(reply>), +Drake Kazemier Not the country, but maybe run small schemes, or something like that. But as you say, I'm just pointing out a weakness, not dismissing the idea