With Android Auto, you use the MMI's dial to select and choose menu items, and the touchpad to trace letters for alphanumeric entry or to pan and zoom the map display. Voice control also works for Android Auto in the Audi Q7.
Android Auto's home screen shows tiles relevant to you, such as meetings from your calendar and a history of messages. You can easily scroll through the tiles with the car's dial, and select any one of them.
The navigation system, powered by the phone, shows up on the Q7's larger screen. A Google engineer told CNET that this implementation was still in beta, and that the Android Auto screen will fill the entire LCD in production form.
Entering destinations for navigation is easy. You can quickly enter a destination by voice, or use the MMI controller's touchpad or dial to enter alphanumeric characters on this screen. You can also pan the map and choose a location.
At time of writing, Android Auto supports four messaging apps, including WhatsApp, Telegram and Android's native SMS app. Android Auto indicates when a message has come in, and lets the driver decide whether to have Android Auto read it out loud. The driver can then dictate a reply.