I would also like hard physical disconnect from the car's essential motoring functions and from it's auxiliary and entertainment functions. You would think that would be a no-brainer but it has been demonstrated how many new cars can be shut off or have essential motor functions remotely changed by hacking in through entertainment/media systems. Not sure if it is because of ignorance, penny shaving, or intentional implementation, but I don't see how I can trust a car that some punk on a laptop can disable or crash at will using simple scripts someone could post online.