In one of my other threads I said I wanted to copy the GT 40's rear spoiler I liked. It is a very simple shape and I knew I could copy it when I saw the car up at Summit Point. (See my post "I beat a GT 40'). Back in the day, 1966, I remember as a 11 year old kid when the Ford GT 40 came out and all the hoopla about aero testing the car with a picture of pieces of string held down with a piece of tape and some one in a chase car taking pictures of the GT going around the track with some strings flapping and some sticking out straight, this was high tech stuff to a little kid making balsa wood air planes. I got a 4' piece of aluminum 1/4" thick and bent it to fit the rear deck curve of the trunk. I used 1/4-20 rivet nuts sunk into the sheet metal to make the mounting flush with the curve. The support brackets are overkill, too big and thick but very strong. To get the angles right I did TIG over MIG welds, not pretty but very strong. I will cut down the fillets and coat the whole thing in matching Midnight Blue and it will fade into the car better and not look as "different" as it does now. Does it work???? I don't know, but the air blast with the window down is not hitting me in the face anymore and that is a big plus when you wear glasses like I do all the time to see. Damn kids and their Lasik surgery, grumble, grumble.