This is an AC Cobra which is built using AC Cars LTD cars built in the U.K. (not sure what they use for the replicas). The Ford GT 500 was built using Ford Mustangs that was built in the U.S. So although Carol Shelby customized both vehicles, their completely different vehicles. I actually have a friend who has an original AC Cobra, not a kit car. His dad bought it new back in the 60's.