Your phone has pretty much everything anyone would need to know your location, your speed, your rate of acceleration an deceleration. Everything OnStar can do except throttle position.......but if you are accelerating hard that's pretty much derived
No ones complaining about their phones though.
I've said it before, a friend swears he gets targeted ads for things he has never searched for........but he has talked about. You know how you can simply go, "hey, Siri" on an iPhone 6s without touching your phone? Yep your phone is listening too.