The actual name is Google Automotive Service [0], which shortens as GAS. That's not bad I think, at least it's easy to remember.
The fact that it's still confusing with android auto being another thing is I think partly on purpose, to make it look like Android is doing more than what it's actually responsible for.
Few things are as big a win as ensuring your customers are never quite sure they really understand your product line up. Because they actually never really understand your product line up.
I can understand this kind of thinking in a here-and-gone used car lot.