From the FAQ:
What is the Open Automotive Alliance™?
The Open Automotive Alliance is a group of technology and automotive companies who have come together to bring the best of Android into the automobile in a safe and seamless way.
Who is in the Open Automotive Alliance?
The founding members of the Open Automotive Alliance are Audi, General Motors, Google, Honda, Hyundai and Nvidia. Though this announcement is the beginning, not the end. We’ll enthusiastically work with any company interested in the compatible use of the Android with cars.
Why is this beneficial to automakers?
Automakers will be able to leverage a platform already being used by millions to deliver a familiar and consistent experience to their customers. Taking a platform centric approach enables high quality application development in a way that is purpose built for cars.
Why is this beneficial to drivers?
Drivers are already trying to access mobile services while they’re on the road, but in ways that aren’t always seamless or safe. By working with automakers to deliver these experiences in ways that make sense for the automobile, drivers can get what they’re looking for without disrupting their focus on the road.
Why is this beneficial for developers?
With one platform that developers are already familiar with to target (rather than a patchwork of platforms from different automakers), developers will be able to focus on delivering a powerful experience for users.
Who can join the Open Automotive Alliance?
We welcome those in the automotive and technology space who are committed to bringing the best of mobile into the automobile in safe and seamless ways.
How will Android work inside of the automobile?
We’re working with our partners to enable better integration between cars and Android devices in order to create a safer, car optimized experience. We’re also developing new Android platform features that will enable the car itself to become a connected Android device. Stay tuned for more details coming soon.