I'm not sure but it looks like the air is directed from the hood to halfway up the windshield. Wonder if that's what auto makers strive for, a stream that hits higher up on the windshield so it doesn't touch as much of the front thus reducing drag.
I'm actually more interested in the stream going into the front air intake and then leaving through the wheel area. Does that air do anything, serve a purpose of some kind of does it just goes right through?