The area between the windshield and the front trunk is a lot like the under hood area in any standard front engine automobile. All the items found there are weather resistant and are expected to encounter the elements. If you look closely, you'll notice that all of the rain water that cascades down your windshield during a rain actually collects at the windshield wiper cowling area and is drained directly into the area of the battery and etc. This battery area has two very substantial drains that allow the water flow to pour out into the front left and right wheel wells and two or three that drain near the cars center line.

The cowling drain holes and the perforated covers that cover this area have ventilation openings sized small enough that leaves and debris shouldn't find their way in, ultimately preventing the plugging up of our five drain holes.

Regards,
Joe