Up for auction on ebay is a 1969 Shelby GT500CS! But, this is no ordinary Shelby GT500CS, this muscle car was built on a Mustang GT platform. Retrobuilt, Shelby Automobiles Inc. will be building these new muscle cars in limited quantities. So if you like the style, you better get your butt over to Ebay and start bidding on this one of a kind muscle car. The one up on ebay though is the first one built, so I think it's going to be getting a super high bid. You might want to wait till Shelby Automobiles builds a few more. It will be interesting to see what the Shelby GT500CS sells for.