Codemasters is the developer of the Gran Turismo series.
Explanation
The statement is false because Codemasters is not the developer of the Gran Turismo series. The series is actually developed by Polyphony Digital, a video game development studio based in Japan. Codemasters, on the other hand, is a British video game developer and publisher known for creating racing games, but they are not associated with the development of Gran Turismo.