Go to free ride and select Chicago. Then to Wrigley Ville and go to the stadium. After you are at the staduim go to the area to buy tickets. Go to the only booth that says"Tickets" and push Triangle. Then the screen will say "You unlocked a secret area." After you do that circle around and go into the open gate. Then head to the stairs, and walk up. Then walk all the way down and you will get a fast yellow car.

To find a secret truck in Rio head to the top of the map and on the very top road head along it until you find a switch near a gate. Hit the switch and voila a cool Truck.

You can find armored trucks in Chicago located in the Ukraine village area.

To get his car you must go to Chicago and set the time to day, not night. When it asks to choose your car, press next twenty-one (21) times then press select. By the time you start, you should have Jones' black car.

Beat the game once and you can pick any car that's in that stage. Even the police cars are selectable.