While its not quite like the headline says, the new Audio Q5 launching in fall 2008 will feature a the latest-generation infotainment system from Harman/Becker Automotive Systems, and it will feature an NVIDIA GPU. 

I'm not saying you can play ETQW in your car quite yet (wait for the hacks!) but this is really cool integration of powerful visual computing GPU that will revolutionize car navigation with full 3D acceleration.

You can read more about it here or visit the Harman/Becker website.