Two bonus songs:
To unlock two new songs, go to the sound test menu and simultaneously press L1+R1+Triangle.
Unlock the following races by performing the corresponding tasks:
RACE - HOW TO UNLOCK
Bunta Fujiwara at Akina Downhill - Defeat project d takumi at tsukuba.
Project D Keisuke at Tsukuba - Defeat all available rivals.
Project D Takumi at Tsukuba - Defeat project d keisuke at tsukuba.