I've had some rental cars that wanted me to install a manufacturer app. Super annoying! Just let me plug my phone in and project my screen and speakers. I don't want to get adjusted to a new UI with each car I drive, or worse sync stuff. I also have zero interest to find out what software a car company will develop. Car companies should make cars and leave infotainment to my phone and companies that are experts in it. Built-in infotainment in cars is even worse than "smart" tvs.