I have the #18, and would trade it for your pikes peak quattro and a horn. I'll get to my apartment at about 4:30 to 5:00 EST, (in about 2 hours) and can send it then. Add me on PSN and i'll send it as soon as I get there.
I also have many other NASCAR autos and am willing to trade them away for a non-NASCAR auto, if anyone else is interested.