There are 3 modes you can play with in this game.
1. Arcade modeThis is the same as Arcade Stage version 2.
You will be able to tune your own car in this mode.
You will be able to unlock 5 more tracks if you completed beating everyone including Takumi in Iroha.
The 5 extra stages are: Real Myogi, Real Usui, Shomuu Pass, Emma Pass and Momiiji Line.
2. Story modeThere are 3 different stories in this mode
- Takumi (Stage 1 - 19)
- RedSuns (Stage 20 - 24)
- Project D (Stage 25 - 31)
Click here for a detailed description of the Story Mode from Stage 1 - 31.You will be able to unlock cars' info and additional music in the game like No One Sleeps In Tokyo, Speedy Speed Boy and many more.
You are allowed to use the Trueno only for the first Stage, it follows the story in the comic book.
3. Time Attack modeYou get to play all the 6 tracks from Arcade Stage version 2 plus another 5 new tracks including the real Myogi and real Usui, and also you will be able to play the 4 Course Map without having any points deducted. You will be able to tune your car here (the one that you got in Arcade mode).
Other non-playable optionsYou can choose to see the records from each tracks, you will find your T.A passwords here to register on the Internet Ranking, however. I believe you can't register on the net if you have a pirated copy. You will get a blank for your name and your area will be OTHER AREA.
Settingsto setup your controller, audio options, Map Settings and more.
Cars infoYou choose a car that you unlock from the story mode, then you will be able to see reviews and video on that car.