I think it is unlikely from a simple reason: Today when you will buy "connected" car the manufacturer wants YOU to pay the internet bill for your car. But what are your incentives to pay internet for the car, when you likely already have internet in your phone? Nil.
It is nice mind experiment that cars could theoretically spy on everyone, but hitting some practical problems, like who is paying for traffic from a car to some datacenter which will be in high megabytes every second? Who pays for petabytes of data to store every hour? Who pays for massive server clusters to search through those data when you need them?
It is nice mind experiment that cars could theoretically spy on everyone, but hitting some practical problems, like who is paying for traffic from a car to some datacenter which will be in high megabytes every second? Who pays for petabytes of data to store every hour? Who pays for massive server clusters to search through those data when you need them?