Quote Originally Posted by dazn
I cant say for sure without looking at the car more in depth, but the ductwork cant really be adding more downforce. They are mostly there to reduce drag caused by the massive front openings and venting for the heat exchangers. Now with that said, the front openings may be mandated to increase the drag on the cars, but i dont know for sure.
I miss the days of the massive tunnel cars.
Check the gallery in my latest post. The shots of the car there are much higher quality. You might be able to tell better there.

I'll be the first to tell you i'm no Adrian Newey so my post was generic specualtion.