Pimp My Ride [PSX]
These are the following ways to unlock the customers. You have to pimp out a few customers rides to unlock more customers.
Unlock Alyana, Jason, and Sandra
Pimp out Hari, Leon, and Alixs ride
Unlock Hari, Leon, and Alix
Pimp out Marias and Andreas ride
Most of the time the kind of things in most need of pimping are usually body kits, paint jobs, and rims. Go for them first to get a better score.