Android Auto is finally ready for consumers. It's been nine months since the announcement of Android Auto at Google I/O 2014, and today the app has hit Google Play. Android Auto distills the Android OS into an infotainment OS that puts supports maps, music, calls, and text into a car-friendly interface. Like Apple's CarPlay, the software runs on the phone and is beamed to the car's display where it "takes over" the touchscreen.
If you want Android Auto today, you'll need a Lollipop phone, the app, and an aftermarket head unit. Pioneer's AVIC-8100NEX, AVIC-7100NEX, and AVH-4100NEX seem to be the only compatible devices out there right now. They range from $700 to $1400 and require ripping out your current radio and replacing it.