Android Auto is set to introduce support for third-party calling applications with the upcoming Android Auto 13.0 update. This update includes significant behind-the-scenes enhancements, such as a new "Car Media" feature for accessing local media sources and several new flags indicating potential integration of external dialer support. A "Calling" category for Android Automotive exists but is not fully implemented in Android Auto, with WhatsApp mentioned as a potential candidate for calls, although its functionality is currently limited to specific devices like Pixel and Samsung Galaxy smartphones.