Will Ireland/MacFormat Magazine/Future via Getty Images To use Apple CarPlay, your car must support the feature and your iPhone needs to be running iOS 7.1 or higher. CarPlay is a custom iOS interface that presents important apps and information from your iPhone on the car's touchscreen. Once connected, you can run apps that are optimized for CarPlay on your car's screen, navigate, make calls, use Siri, and more. While your iPhone adds a lot of convenience to your daily drive thanks to its music and podcast access, voice calls, navigation, and more, it's also unsafe (and possibly illegal) to fiddle with your phone while driving.