What about spoilers?
 

I have seen many pictures of the guy in aus. with that track ran bug with that CRAZY lookin spoiler on the back, and i think that looks really cool, what are the chances of obtaining something like that in the US?

slim to none....

if you want one you will have to order it from Australia
Contact VForce

They make the wings you are speaking of

jakriz had his for sale. you should check with him to see if it is still available.