The Android Auto split-screen update lets you use multiple apps simultaneously. Update the Android Auto app to start using split-screen mode. Here's how it all works.
Android Auto update coming mid-year with split-screen layout
Android Auto Split Screen vs. CarPlay Dashboard: The Good, the Bad, and the Ugly - autoevolution
Google's new split-screen look for Android Auto is rolling out to everyone - The Verge
Google rolling out new split-screen look to Android Auto – India TV
Split-screen mode began to appear among Android Auto users
Android Auto's split-screen redesign gets retooled and enters beta
How to use Android Auto's split-screen interface
User's Manual
Android Auto's split-screen redesign gets retooled and enters beta : r/ Android