Although I despise 'connected' cars (maybe because my work brings me into contact with them on a daily basis) I've added 'connected' functionality to my own LandRover - but on my terms, with a GSM Telemetry module - it's not really telemetry, more simple I/O...
It alerts me by text if the alarm is activated, the main or aux battery fall below 11.8VDC
I can command it to run the fuel fired pre-heater for 30 mins, and / or turn on the heated screen, seats & steering wheel for 10 mins.
It requires a pin to accept commands and only from registered numbers and can be interrogated for its GPS position, with the added bonus of being able to connect by satphone if the GSM network is unavailable.
It doesn't save tracking info, send to anyone else, identify me or my car uniquely and most importantly, can be turned off without affecting the designed functionality of the car.
Yes, I know the GSM & INMARSAT can be tracked, but the IMEI's are not associated with the vehicle specifically, unlike the 'connected car' stuff, so in that sense, it only shows the vector and speed of travel, the mode is unknown.