I know NACA Jets were used on the RS4 for brake cooling purposes. There are rumors that the R8 will use NACA jets to cool the massive brakes and a brake "wiping" system to dry brakes in wet conditions.

Any ideas about this. Can someone expand on the definition of NACA JETS. Is it a special system to complement the Braking system or is it just some underbody structure modifications to have air concentrate on the brakes?

Am I making any sense here? lol

your second sentence is correct. and i am sure the R8 will have in the minimum the same things the RS4 has.

NACA was the name of the organization that has since become NASA, when its charter was enlarged to include research in space technologies. A NACA "jet" is actually the design of an air intake. The NACA design is low drag. Many cars have used NACA air intakes for cooling. Look under an Audi sometime and you will see air intakes the resemble a curved or pinched "V". That is a NACA duct.

...<font color="003366"> NACA duct. And yes, the AU714 does have a few of these on its underbody to divert some under-car airflow to keep the brakes.</font>

The current generation TT, among others, feature NACA ducts on the engine compartment cover. Follow the link and look at the picture showing the car's underside. The three ducts are located on the engine cover. The first two on the lefthand side near the bumber and the third is on the centerline near the rear of the engine cover.<ul><li><a href="http://www.fourtitude.com/gallery/gallery2.php?mode=album&amp;album=/Audi/TT-TT%20Roadster/TT%20(a4)/Coupe/Technical">Belly pan</a></li></ul>

<img src="http://www.shareyourpix.com/inc/i_importimage.aspx?u=356&a=580&i=9152&w=600&h=529">