It's warranted for navigation, or possibly things like virtual mirrors. I wouldn't want to see text messages. Why not just use audio if it's so damned important to get the text?
My Moto X actually attempts to figure out if you're driving, and it is capable of reading texts aloud and it even allows for reply-by-voice.
My jaw hit the floor the first time it went off. My jaw also hit the floor when it read a rather private message while I was a _passenger_ in someone else's car.
My jaw hit the floor the first time it went off. My jaw also hit the floor when it read a rather private message while I was a _passenger_ in someone else's car.