There is a way for the vehicle to recharge itself, but the equipment is too large for modern cars that seem to put everything into a compact spot. I have worked on a project with a friend (rip) and had a working model in an older Tesla that not only charged the car, but was able to use all the features. Sadly, he had to disconnect the cars computer and run it as separate system. Then the added weight and lack of space made for it being problematic. With modern equipment and newer technology, I’m sure it’s doable now, just not sure if it would be practical now.