Because all you need to do is Bluetooth your iPhone to your 1995 Ford Ranger, and install Gemini to have a voice conversation with your cars speakers. But then your original comment doesn't make any sense about it being only possible with a Tesla.
Why do I need a big screen? The models mostly all have voice interfaces now. I shouldn't be sitting there reading and typing text input or output while driving anyways... What are you actually imagining doing with these models in the car? I still haven't heard what use they are.
