When you begin Free Ride in the city, head into the street, then reverse into the starting area. A car selection list should come up, allowing you to change your car.
Note: This can be done anytime during Free Ride.
Bigfoot Truck - Succesfully come in 1st place on every race on Championship mode.
Free Ride Cars - Each car you learn to break into during a mission in story mode, will automatically appear for use in the Free Ride mode.
Unlimited Ammunition - Succesfully complete the game, and then start a New Game.
Learn how break into a car during missions to be able to use it as your Free Ride starting car.
Progress through the story mode to unlock new Free Ride areas and times of day.
If you are low on health. Just go to the garage its the one were he tells you about new cars and you gotta go rob them. The health is on the left of the entrance you will get 50 health from it.
Go to a railway station, elevated railway station or trolley and get in. Then wait until your wanted level goes down.
The Race menu option is unlocked after completing the main "Story" mode.
There are many ways to get money, these are some:
Kill the men in the black suits with the black hats to get $500 each
Go into the country and speed in a fast car.
Blow up cars to get $100 each.