Melissa is in the market for a new car and wants to sync her phone to it. Leo says that the trend for modern car design is that auto manufacturers are designing their entertainment systems around the phone, creating a portal, rather than a standard stereo system. That way, when she gets a newer phone, she'll get an upgrade of her system. Navigation from the phone also syncs into the car. Apple's CarPlay is available in over 100 different car models now.