If you are talking about mine, it's a fiberglass outer skin and I believe it's laid over polyurethane. I believe the CDC is ABS plastic, not sure though.
I've got the Street Scence (SS), was gonna get the Cervini til I saw one in person and realized how big it was, I'd say atleast 2 inches taller then the SS. I don't know if the SS will cover the factory holes since I ordered my car with the wing delete. I do like that the SS has a cut out for the 3rd brake light which not all ducktails have. All in all, happy with my choice.
Sorry I guess I should have been more specific a member called praztek posted his wing around page 5 of this post and was talking about a wing to replace his three piece ducktail for the third time because of bad materials. He posted some pictures and it was a pretty nice tail but I can't figure out the maker.
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RE: Definitive 05/06 ducktail + spoiler thread - 
