Originally Posted by wyrm11
This is my vote. I'm not a fan of the center vent. It's just too much. I prefer the subtlety that ArmyBimmerDude mentioned. Plus, I think something more subtle is more likely to sell than something extreme:
The design should have form and function. The center vent area is where there is the greatest heat from the car. The design should serve as a vital solution to help vent heat built up under the hood. The side vents are purely cosmetic where the center vent would actually help in venting built up heat.
My measurements show that the center vent area is roughly 20C warmer than the side vents. If anything you could ditch the side vents and just keep the center from a functionality standpoint.