Re: All this will require very wide band communication into the car.
"So it will have to be possible to drive the car manually with all the remote stuff switched off. In the case of systems/network failure, as well as when you are in a remote region."
No, I would expect the robot cars will be required to operate autonomously if there's a loss of communications - they just won't be able to co-operate with other vehicles or traffic management systems (which is less of an issue in the areas with poor connectivity).
Biting the hand that feeds IT
