The 911 GT America was built exclusively for the United Sports Car Championship (USCC) and its GT Daytona class for the championship's maiden year in 2014. Based on Porsche's 991 Cup car, the GT America was fitted with a more powerful 4.0-litre engine and new aerodynamic appendages to better match the car's performance to the GT3-based vehicles of the GT Daytona class. One of the most affordable cars on the grid, the GT America saw great use and great success in the USCC until GTD was reformatted in 2016, rendering the car ineligible for competition.