However, if companies like apple and google move into this space, then OEM won't have ****. Take the old Verizon proprietary phone OS. They would never back down. Then comes Apple after they did it with AT&T and blew open the market of new phone interfaces. Now every phone interface can have innovation.
The car can benefit from the same thing, if Apple can do this successfully it will show, and people will probably demand that all car interfaces be OS loadable. Your choice of iOS, Android or some sub flavor of HTC whatever.
The point is there are only a few interfaces left that haven't got the special tech company giant treatments. Cars and TV being 2 of them.