D1 Grand Prix

Unlockable Cars
To unlock these characters cars, you have to beat them in Survival Mode:

Car - How to unlock

Cop Car P34 - Beat opponent 38.
Daijiro Inada's Stream Option Z33 - Beat opponent 15.
Keiichi Tsuchiya's AE86 - Beat opponent 32
Manabu Orido's Eclipse Advan JZA80 - Beat opponent 20
Manabu Suzuki's RB1 - Beat opponent 10
Tarzan Yamada's Taisan Benihana Viper - Beat opponent 26
Zaku's B310 - Beat opponent 5

Xtreme Mode
You must complete all seasons in D1 Series including Custom and beat Survival Mode.