Car companies are planning to
collect lots of data about
the use of the car,
and want to sell it.
The first way a "connected car" spies on the driver is through the
connection itself. It uses a cell phone modem, and the phone network
tracks its movements just as it tracks a cell phone.
You can disconnect the modem in your car, probably just by unscrewing
it. Then the phone network can't track you, and the car isn't
connected, so it can't send any data about you, such as where you
travel or what you say in the car.
But it might save up data to be sent or extracted later. To prevent
this, we need laws.