Having to hook the phone to the car is s giant leap backward. We’ve got Gmail: email from any device. We don’t say: My phone has all my email, I hook it up anytime I want to read mail, if the battery is dead or I forgot my phone, I’m screwed. No, we use Gmail from a tablet, phone, PC, etc.
But for some reason people believe it’s an awesome advance that we can hook the phone to a car, as if it’s impossible to build Google Maps into a $30000 car.