I can speak for Volvo and Audi’s platforms over the past 5-10 years. I spent a lot of times using those. They’re connected up the wazoo, but they also work just fine if you stop paying for cloud connectivity or get into a remote area.

You basically lose access to advanced maps, streaming apps, and being able to remotely control / monitor your car with your phone.

When I briefly looked at a Telsa, it looked like those things were kind of in a similar boat. Biggest problem with Tesla is that, since they don’t support CarPlay or Android Auto, you -need- a cloud subscription if you want streaming apps and maps. Other cars can pipe that into the center console through Apple or Google’s projection systems.