This is the HotRod Power Tour - they do it every year. They start in one location (this year Kissimmee FL) and drive as a group to different locations over the course of two weeks. It ends at Englishtown this year. There will be cars from all over the country at the show - hot rods, f-bodies, exotics... TV coverage, all sorts of cool stuff - go here for more info...
http://hotrod.com/powertour/