I think that will be possible for certain collections and sharing of information, but probably not for all. For instance, if we imagine a world in a few years where there is a mix of autonomous and semi-autonomous cars, there has to be sharing of information between the car and the infrastructure, the road, to ensure that cars function in a safe manner. I do not envisage that the collection and sharing of information to ensure road safety is something that people will be able to opt out of.
On the other hand, there are more benign uses of information, such as the contact list on your telephone that's connected to the car, or things like that, where, yes, there should be an opt-out.