@drunken monkey: I'll answer to tech question later: I'm still studying the '07 ACO tech regulations. From the first look I don't think my design is 100% against rules but there's something here and there that need to be corrected, and I'm considering just the body work/aerodynamics/safety noticeable stuff since mine would be curbside. Doing the job, and since it would be expencive, I want to do right.
For the back cooling vents: I planned to place some vents just over the wheels, also in front (black area over light) but if you look at any LM/ALMS car they are almost closed: hot air, expecially if indexed from tha cold air flux coming from front, is precious for the rear extractor. So just a couple of nacas and intakes for brakes.
I seen the caparo, on EVO mag. : those isn't a racecar, they need to keep the cockpit fresh if they want to sell the car

. It's definitely cool but not the kind of car I'm talking here

.
The model is very stark for the moment: I wanted just to have an idea of overall shapes, when defined, I'll design deeply the stuff. I done it with my usual 3D NURBS software: Solid Thinking , is very similar to Rhino, but more professional to me (and in fact cost more LOL), link:
http://www.solidthinking.com/index-en.htm
You'll see few other my automotive jobs in their site
http://www.solidthinking.com/products/gallery/index.htm
gallery>automotive>photoset2>last 3 picts.
I'm just a product designer but I love automotives so I use those subject to experiment SW potentials, and at last... to play LOL.
Thanks you all for your attention/comments,
@ julian: my first giokit (LOL) would be for sale in September/October under the new brand Scuderia.Italia.lab that I created with two partners,
but wouldn't be this one 
obviously, this is just for me

. Let me upgrade my AF account and I'll say all