[Shepherd777]

Originally Posted by drmiller100

On the fender. Look at the front fender of the silver truck. Air is going to go around the front tire, and stack up on the inside of the fender just in front of the step.

Now were talking about what I want to talk about in this post. That is exactly why I designed this truck the way I did. So some of the hot air from underhood exits this vent and then blends with the air on the leading edge of the rolled-in skirt.

The skirt on the ferriari is for visual mostly, and to let a bit of air out from under the front of the car. On a Ferrari, they are tubbed, so air doesn't have a great way to get out teh front of the car.

If by the word "skirt" you are referring to the F1 fence, I disagree. The F1 fence is there to maintain the flow around the bumper and air dam and some air traveling over the wheel and tire. The rolled-in door panel is used to let a bit of air out from under the front of the car.