Have you seen the 2006 Mustang GT Convertible Supercharged on ebay? Looks sweet. Cheap too.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=4640343560&sspagename=STRK%3AMESE%3AIT
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=4640343560&sspagename=STRK%3AMESE%3AIT