Users can experience apps built with the Android for Cars apps 2 ways.
Projected from phones (Android Auto)
Users who install an Android Auto-compatible app on their phones can
project the app experience onto the screens of all compatible vehicles. The
connection can occur either wirelessly or over a USB cable.
When projected from the phone, your app will use the same colors and
styling across all compatible vehicles.
Downloaded into cars (AAOS)
In vehicles that have Android Automotive OS (AAOS) built in, users can
download your app from Google Play directly into the vehicle. They can then
run your app in the vehicle without needing to connect a phone.
When your app is downloaded into cars, vehicle OEMs can adjust colors and
customize styling
to fit specific vehicle models.