Checked out the video screen that is part of the dashboard in my brother's new car that showed a rear view when backing up. I noted that an ipad could fit nicely there. Given Sirius' rise from getting deals to preinstall their radios in cars, I wonder when Apple will announce a similar deal for the ipad to not only provide the "rear view" service, but also gps, music and all the other things that come with an ipad/iphone.
Siri would be apologizing every minute that the car does not have Apple maps. Car makers look for cheap cost to mark it up considerably to the buyer. Adding any Apple hardware with car mfg mark up would cost minimum $4000/item.