Google Maps update with support for Apple CarPlay in iOS 12 is now available to download on the App Store [→ Direct link].
Waze is yet to release an updated app, but it shouldn’t take any longer now.
At WWDC 2018 Apple announced support for a few more 3rd-party apps in Apple CarPlay. And it clearly showed Waze and Google Maps on the screen on an Apple CarPlay display.
However, it seems the feature isn’t available yet with the iOS 12 beta. Or maybe we have to wait for an update to Waze and Google Maps to be supported by CarPlay.
Knowing Apple, chances are pretty good you’ll see these apps running on your car’s dashboard only after iOS 12 officially releases in September.
Let’s wait for a couple of weeks to see if any app updates would enable Google Maps and Waze on Apple CarPlay with iOS 12 Beta.