Originally Posted by Airwolf

All of the GT500 parts are manufactured by Ford, and put on the car when it is assembled, this makes the parts available for Ford dealerships to sell. The Shelby GT's are built as stock cars by Ford, and then sent down to Shelby in Las Vegas where they are upfitted with the hood scoop, fender badge, etc. I imagine they are concerned about GT500 clones, but they can't do much about it, where as with the Shelby GT they can hold onto their little parts and feel special.

Personally, i don't think anyone would try to "Clone" a Shelby GT anyways, putting a hood scoop or a fender badge doesn't mean they are cloning it, just taking an available part that looks good and adding it to their car. There are alternatives to the Fender Badge, such as the Scott Drake badge that is offered at http://www.partscheap.com/scottdrake05.htm
It is similar, but not quite as "modern" as the Shelby GT one.