By the way, I'm finishg some adjustments on the glass area of the 3d model of Aventador from the game "Forza motorsport 4", and create the glasses as NURBS surfaces, so I may upload the 3d glass files in *3dm and *IGES file formats, if someone want to use them as reference for ordering custom bent glass from your local glass shop. Note that the dimensions of the glasses are NOT 100% accurate to the genuine car, but will fit the 3d model I'm using to extract the cross-sections of my body plug plans, and the chassis designed by me. I believe that this same game model was used by 1-2 other guys who currently develop Aventador body kits, but I may be wrong.