Maybe we've exhausted the 'SUV bad' topic?
There isn't going to be a lot of 'low hanging fruit' on a 2017 model. If you [properly] don't care about appearances you could make a vinyl mask for the grille with a zipper down the middle so you can open and close it, like the big-rig trucks used to do. (I don't remember seeing that lately.)
So it looks like the 'low hanging fruit' is underneath. (ba-dum. tish!)
The scope of the design problem encompasses serviceability (the underside of my car is like the dark side of the moon) and robustness, as in ground strikes.
Ideal would be a one-piece with dimpled recesses for the fasteners. 90% might be only partial pans covering only the bigger cavities and voids. Here's something for inspiration:
http://ecomodder.com/forum/showthrea...red-23159.html
This thread was started by MTrenk (Formula SAE Engineer) in 2012-09 and runs to 16 pages. Maybe something of use in there?