Hiroya Okuyama
| Age | Unknown |
| Sex | Male |
| Car | Nissan Silvia Spec R Aero (S15) |
| Year | 2000 |
| Colour | Brilliant Blue |
| Japanese voice actor | Shūhei Sakaguchi |
Hiroya Okuyama (奥山 広也, Okuyama Hiroya?) is the number 1 driver or Zero 1. Okuyama too believes in Ikeda's "Zero Theory" and is disappointed when he won't be able to use his car's full potential due to the fog. Okuyama, unlike Ikeda is very arrogant and confident in his abilities. He also refuses to greet Project D upon meeting them. His battle against Takumi is raced in the team's first fog battle, but the result was similar to Takumi's battle against Nobuhiko of the Saitama Alliance: Takumi used half his potential until the first hairpin, where he left Okuyama behind.
Read more about this topic: List Of Initial D Characters And Teams, Teams, Team Spiral