engine air flow through vents at top of bay

[rawmaciass]

what is the air flow direction through the two engine compartment vents located behind the back window?

 

[a-zquality]

i would guess down and out the bottom with a low pressure zone in the front and back middle

 

[Oreif]

The air flows up and out the vents. The low pressure behind the window draws the air up from the vents. The air comes from under the car.