Quote Originally Posted by TwinV6GTP View Post
Yes it's to ventilate the back without telling away too much that it's a twin engine. There is a low pressure area right behind the wing which will help draw a lot of air out of the rear engine bay.
I really like how that looks (and I am sure performs). I have my entire trunk gutted and am tempted to do a similar mod now so I can get more pull through ventilation in the car when I have the windows down!