Could the "Flying Mustang" become the most-expensive Mustang ever? The first 1965 Shelby GTR350R Competition Model is heading to the Mecum Indianapolis collector car auction in June 2020. © Courtesy of Mecum Mecum announced that the car collection of John Atzbach—highlighted most notably by the first 1965 Shelby GT350R Competition Model built, known as the “Flying … [Read more...]