Missions A-2 to A-4
——————-
Successfully complete mission A-1.

Missions B-2 to B-4
——————-
Successfully complete mission B-1.

AUV
—
Successfully complete mission A-9.

Dragon-SPL Car
————–
Successfully complete mission A-1.

Super Car
———
Successfully complete mission B-1.

Tank-90
——-
Successfully complete mission B-8.

Tiger-SPL
———
Successfully complete mission A-8 to unlock the car
that Tiger Tagachi drives.

Yakuza Car
———-
Successfully complete mission B-9.

Unlock Finish
————————–
Dragon-SPL Car Finish mission A-1
Super Car Finish mission B-1
Tiger-SPL Finish mission A-8
Tank-90 Finish mission B-8
AUV Finish mission A-9
Yakuza Car Finish mission B-9
Missions A-2 to A-4 Finish mission A-1
Missions B-2 to B-4 Finish mission B-1