I kind of like the additional design detail of the rear fender vents. Very creative!
Since my car has no trunk linings, I went out and took at look at the rear fender area.
The top of the rear fender would vent into the trunk so I suppose that air could be vented front the rear wheel well (by cutting vents into the wheel well lining) and into the trunk, and then out the top rear fender vent. Of course, this would require that the top of the fender was at a lower air pressure than the interior of the rear wheel well - I have no idea if this is true. If not true, then air might flow the other direction (into fender vent to trunk and out the wheel well). Or something in between. Hard to know.
There is some structure on the fender side of the trunk but there are big holes so you can see thru to the rear tail light cover. I could reach my hand up into the gap and touch the rear fender skin. If you go straight out the side of the trunk at the level of the trunk floor, you hit the bumper cover.
