A rare and relatively unknown high-performance model of the Corvette has shown up on Bring a Trailer, and it’s expected to fetch a pretty penny. What you see is a 2007 C6RS built by Pratt and Miller, which is known for building the flying yellow Corvette race cars that took home multiple wins at both the American LeMans Series, IMSA, and the 24 Hours of Le Mans. Just seven of these special edition models were made by the race car manufacturing wing of and featured an original price of around $185,000, plus the cost of the donor car. This vehicle appears to be number 4 based on the window stick…