Now that you mention it, we wouldn't be pumping in crazy amps to the car through a fat wire. We'd be pumping in crazy volts to the can and having the onboard charger convert it from mass volts to mass amps. It would have the shortest conductors reasonably possible after the charger, and there would be no loose connection or anything to worry about. And, since it's contained, it could run liquid cooling of some kind to said conductors, if necessary.
Not sure I'm comfortable with the idea of running 14kV to my car just yet though.