Hey, I am thinking about upgrading to a Cobra. I am wondering if anyone can give me a an idea of what I should expect and maybe list my mustang for to get the most I can for. The mustang is a 2003 GT automatic with only 19,000 miles. It is in perfect condition with minor mods done to it. I am just wondering what the maximum I should list it at? I was thinkin around $18,000 but not sure. Is that good or should I start higher or lower? Any comments would be appreciated, thanks!