The Cobra roadsters dominated the American tracks in 1963. Looking at the coming 1964 racing season, Shelby had his eye on European racing and realized he needed a new weapon to "whip Ferrari’s ass.")
(For the first time in years, it looked like Ferrari wasn't going to win the European Championship. Somehow Enzo used his clout to have the last race cancelled. Ferrari had more points than the Shelby team giving Team Ferrari the trophy once again. Enzo Ferrari couldn't win the 1964 trophy with his cars so he used what no one was expecting to win, political clout.
The next year, Ferrari pulled his team completely out of GT racing. He knew he couldn't beat that upstart Carroll Shelby's Daytona Coupes, so he didn't try. Instead, he went after Ford's GT40's in the Prototype Class. The struggling GT40 team just couldn't pull it together. Ferrari successfully won the Prototype class. Shelby's Coupes won the 1965 World GT Championship hands down. The Coupes won almost every race they were in.)