I was thinking the same as I typed the comment but my assumption is that there has to be some kind of mobile data because of #1 live traffic updates & #2 map up

I was thinking the same as I typed the comment but my assumption is that there has to be some kind of mobile data because of #1 live traffic updates & #2 map updates. On #1 comment below says this is done by radio RDS On #2 however there has to be a way to update the maps in the car as roads (new roads, closures, lane changes, speed limits, etc.) change. My assumption was that car makers hardly expect people to manually update these maps. And likewise could probably not live with the liability of years old data in the maps. But looks like I may be incorrect here http://updateportal.skoda-auto.com http://updateportal.skoda-auto.com BMW at least have actual SIM cards in the cars so original point stands.