LAS VEGAS – June 15, 2021 – Four of the world’s hottest Mustang-based cars will bring a combined 3,200 horsepower to this year’s 47th Mid America Ford & Shelby Nationals on June 16th-20th in Tulsa, Oklahoma. Shelby American’s display of 2021 models, which are based on the world-class Ford Mustang will include the Shelby GT500SE Prototype, a pair of Shelby Super Snake fastbacks and the sizzling Shelby Super Snake Speedster.