I'm not sure Ford ever said who was manufacturing the new carbon fiber rims for the GT350R but I was watching some Jay Leno's Garage and ran across this. Wether they are the manufacturer or not it's still fairly interesting but it does sound like they are the ones. If this is old news don't bash too hard lol.
http://youtu.be/gWiTky3zZXQ
http://youtu.be/gWiTky3zZXQ