Why? Auto vendors realized they lost control through their ineptitude of the user interface, and want it back. Problem is no one wants what they have to offer, that is a sub-par experience in every way to simply letting them use their phone as a screen in their car already there.
Automobile vendors realized they screwed up and lost real estate while they were still screwing with Microsoft, Clarion, all the other WinCE vendors and few others longer than they should, and are simply going to piss everyone off trying to take it back again.