Edit: Just asked because of curiosity. I’m not actually looking for such vehicles.
Edit 2: So for context, my parents new Toyota has this feature that allows the GPS location of the car to be sent to toyota, then you can see the location via an app on android/ios (it’s supposed to be an anti-theft feature). The data is sent via an antenna that connects to cell towers, which then connects to the internet, and to the toyota servers. “Diagnostic” and “maintenance” information is also sent via those same antennas.
The dealer said it could be turned off, but who knows if they are really off. There’s not a hard switch on the car.
Modern cars have no privacy, and there is not really an easy way to disable telemetry (among other things) once it’s activated.
Source: worked as a software developer for a major automaker
How bad is the telemetry?
Telemetry isn’t necessarily bad by itself.
Location information, how you drive, system diagnostics, to try and sell you dealership repair services.
The list goes on, but at one point my team had the ability to unlock any production vehicle.