Android will be in some big high-end German car models in early 2011. There will be downloadable apps, but only from a manufacturer specific market. I don't think there will be any Android branding, so the car owner won't even know it is Android under the hood! So year technically Android, but probably no data, nor eyeballs, flowing back to Google.
I want an Android tablet / embedded computer on my dash with full screen Google Maps and Navigation. That would be so awesome.
Mixed with the rumored gingerbread AR that'd be amazing in a vehicle. Can't wait to see what Google pulls off with Android.