Quick Controls allow for a bottom taskbar with media controls, while disabling moves the taskbar to the side. On your Android Auto display, go to Settings > Show Quick Controls for Apps.

Want the Chrome address bar at the bottom of your Android screen? Here’s how to move it for easier one-handed browsing.

How to move your Google Chrome's address bar on an Android phone (and why you should) The relocated address bar is much easier to reach, especially on larger devices.