Kazunori Yamauchi (山内 一典, Yamauchi Kazunori; born August 5, 1967), nicknamed "Kaz", is a Japanese game designer for Sony Interactive Entertainment and racing driver. He is the CEO of Polyphony Digital and producer of the Gran Turismo sim racing series.
Source: “Kazunori Yamauchi”, English Wikipedia (CC BY-SA 4.0), excerpt