I disagree with the above post. This might make the XLR competetive with the SL65 AMG. About how much would it cost for a complete car? I would recommend a target of around $110,000. The fact that you are a small shop puts you at a huge disadvantage though. I wouldn't develop this kit because I would anticipate a total lack of demand from your customers. Have you guys started developing a kit for the new 6 series BMW? I think that people would have an easier time paying that kind of money for a BMW than a Caddy. Good Luck.