Monitoring people and then selling the data or using it as a sales channel is a way to increase revenue. A lot of companies are under pressure to not just be successful but have constant growth. Following what Google has done is an option company leadership is turning to.

A few years ago the CEO of Ford talked about monitoring and selling access to data like FB. By monitoring, I mean things like the ads you listen to on the radio or the radio stations you tune into along with your location. Trying to sell cars isn't enough.

> Phone contains sensitive data which cars usually don't?

Cars know things like where you go, who you talk to through the A/V system, what radio stations you listen to and ads you hear, and even your conversations (they have microphones that can be used just like those in cell phones).

People assume they are in their own personal space when in a car. When in a car alone they think they are private. If the car is monitoring you that's not the case.

Are there any good resources for finding the 4G chip inside of modern cars and wrapping with a faraday cage?

That's ridiculous for the automotive industry too. Also, pointing fingers at bad behaviour is hardly a justification for Google's (and other's) total lack of good faith.