Here's the android auto experience: Take my phone out of my pocket (not that easy when you are already sitting...), turn on bluetooth (I often have it off because it grabs my headphones etc when I don't want it to) and connecting it to usb (where'd the damn cable go? An apple using family member swapped it out for a lightning cable, and tossed the usb c cable in the back, or on the floor...)
Every now and then it won't connect anyway - or the usb cable is defective (it lives on the car floor so it has a short life), or the usb slot in the car (especially a rental) is defective.
A passenger might have a higher priority bluetooth device and it steals the connection.
When I get to my destination I forget my phone in the car because it is in my pocket most of the time - but not if you are going to use android auto!
If GM manages to do as well or better than Tesla on their infotainment system it would be a win. Unlikely for a dinosaur company like GM, but if they are using an android product there's a fighting chance.