1. Navigation with current traffic without paying a monthly fee to the car producer
2. Seemless following of my podcast from train to car.
3. Notification and voicing of messages while driving and the option to answer.

Those are the main points I can think of right now.

There is probably no way, but something that works in the car like Android Auto? I guess the protocol is proprietary but it will be one of my hardest things to miss if I had to go back to the car navigation and entertainment. So if it can’t be compatible, then something that does the same with an external screen or so, so it can be added to a car.