Why would I want to turn on Developer Mode in Android? Developer mode grants you access to some of what we would call the 200- and 300-level features on your device.

Chrome OS devices are getting more powerful and capable, allowing for a pretty good (albeit simple) PC experience. If you want to go beyond the basic capabilities of your Chromebook, though, you’ll ...

If you've ever enabled developer mode on Android itself, this is going to sound familiar. Open the Auto app and tap on the header image about 10 times.