Originally Posted by halfmonkey

So the part on top of the fender is a vent similar to what was on the GT3 RS.

As far as the big 'ole black plastic pieces on the sides of the bumper, that looks like an air guiding device put there to help with front downforce. Since the rear now has a swan neck wing that appears to be higher up in the air stream, I'm guessing it's also more efficient since it's now a swan neck mount, they have to balance that on the front of the car. Since, adding a similar wing on the front of the car isn't possible, they're adding downforce by cleaning up the air around parts that create disturbances and therefore lift and drag. This looks like it'll be in addition to the air curtains already on the GT4/Spyder where the air is being picked up from the side of the left and right intakes. This piece looks like it's picking up the air as it passes around the outside of the bumpers and then meets the air from the intakes to really accelerate the air from the wheel well. Then the vents on top of the fenders should really help reduce the air pressure and therefore adding to the reduced lift, reduced drag, and therefore downforce.

Originally Posted by jmartpr

The NACA ducts on the hood already provide extra downforce on the front end besides cooling for the front brakes. Those are too small and on the very edge/side of the bumper to make any significant downforce.
Also, if the vent on the GT3 RS is so efficient why not use the same one? That would be way easier and less costly for PAG..unless they only want those for the GT3 RS.

Originally Posted by CAlexio

Render alert! Turns out these images may be the result of an exceptionally talented photoshopper on Instagram who put out the originals.... and duped us all!

Originally Posted by halfmonkey

Well AP talks about them in the video I shared a couple of posts up and he talks about using them to balance the car so I think even though they are a small device, I think their benefit is worth Porsche having spent the time, money and effort to develop them to help balance the car so I respectfully disagree with you saying that it doesn't provide any "significant downforce." Also, practically every car manufacturer now-a-days has these front air curtains on their cars in some form whether hidden or in plain view.

I don't have any answer as to why not use the same vents from the GT3 RS. Could be that they don't want to encroach on the GT3 territory since there still has to be some sort of performance heirarchy or it could be that they need to design something different since some years of engineering development has passed since the GT3 RS was released and they've learned some new tricks to incorporate into the GT4 which will probably make it's way to the new GT3/RS and then GT2.

Originally Posted by mclarenmaniac

Originally Posted by MsGT3

Is he talking about the two pictures CAlexio posted above? The pictures with the two guys around it is real though right?

Originally Posted by mclarenmaniac

apparently the earlier spy shots were also renders

Originally Posted by jmartpr

I see....So besides the ones that the normal GT4 has on the inside of the bumper (on the sides, that's why it has those exits in front of the tires) the RS would have also externally on the sides? IMO they look awful from an otherwise clean and efficient front end.

Originally Posted by halfmonkey

I thought the NACA ducts on the frunk were purely for the brake ducts. Since no official word has been released, it's anybody's guess right now but I suppose it could also add a little bit of downforce or remove a little bit of lift somehow. PAG and AP must have thought it was worth it to add it on what will be a very low volume car...not limited, just low volume.