Just hours after the iPad mini went on sale, car audio specialists are already installing it in the dashboards of cars. This example, first noticed by 9to5Mac, was installed in a 2012 Toyota Corolla by Soundwaves of Tampa.
The install uses the iPad mini to play Pandora and iHeartRadio through a previously installed audio system. However, because the iPad mini with LTE isn't yet available, the car most likely has a MiFi hotspot installed inside somewhere for a mobile data connection.
From Mac Rumors.Com
http://www.macrumors.com/2012/11/02/ipad-mini-already-installed-in-car-dashboard/