Tecnocraft has a wing they developed for the Gallardo - then adapted to the Ford GT at Joyrides request. I've had a chance to spend some time with the wing both on the street & on the track. Here's the areo setup-
All components from TECNOCRAFT-
Front splitter
Side splitter
Diffuser
Wicker
"Race" Wing
On the STREET - You will notice a slight increase in fuel consumption due to the additional drag, however this penalty is overcome by the high numbers of mostly attractive women who apparently love a big wing and cannot keep themselves from waving, yelling, whistling, cat calling, asking for rides, asking for phone numbers and in a few undocumented instances exposing themselves in a way that I'd bet is illegal in all 50 states.
On the TRACK - At Miller I ran the wing with a little downforce as possible, and still had too much "rear". My gut feeling it that that the wicker alone would have been enough - the rear was absolutely GLUED to to track. Interestingly I think my speed on the straight was very very close to that of a "stock" GT, right about 160.
In GENERAL- it's a nice place to set things (not on paint) & makes a very handle to push or pull the car with. I personally think it looks AWESOME! And in case you missed it - Joyride is selling the one on the orange GT.