(December 27, 2018) WALWORTH, Wis. — Now spanning 11 days and boasting an estimated 3,500 classic and collector cars slated to cross the auction block, Mecum’s Kissimmee, Fla., auction will again take the title of the world’s largest when it returns to Osceola Heritage Park Jan. 3-13. The massive event will cover more than 60 acres and feature at least two dozen private collections, 3,000 items of Road Art, the Mecum Midway of food, exhibitors and various live entertainment acts on the Midway stage, the Dodge Thrill Ride, and, of course, the ceaseless high-energy Mecum auction action.