I found this post from Muscle Car Blog News to be pretty informative:

Have you ever wanted to own a piece of rock history? How about living history? Well, now is your chance! MuscleCarBlog has just learned that Alice Coopers 2005 Supercharged Mustang GT is for sale on eBay' The car reportedly has 500 H'P' thanks to the Paxton blower and has a bunch of other upgrades' Current bid is $30,000 so get to bidding!

Found at: Muscle Car Blog News