well what you have to do is complete at least 1 event on the day careera and every time you do one the more cars you win
Type in "unlockallthings" in "Code Entry" and you will have everything
you can unlock all cars by entering the code: unlockallthings
for cars
type unlock all things and get out of your career load the game and you find 4 new cars
You Have to go to the garage
You have to beat the second showdown
You have to go to the store and unlock the truck and bike sections for $0.99 each
I believe it's unlimited...I had over 175 cars in my garage
to unlock all cars when you go to the main screen press the buttons... L1, L2, R2, R1, and X.
get 3 cars how easy was that!
beat the whole game
a freakin bunch