All cars and courses-Enter your name as Nosilw

Happy gaming =p

Enter the name Nosliw

When you start the game select "Create New Driver" and then enter your name as "Nosliw". I didn't hear any chimes (maybe i'm deaf) but I did the Career Mode and had all cars unlocked and everything.

Get Faster Mercedes:
Put in Reki for the driver's name

Get New Helmets:
The more hours you play, the more helmets you unlock. Every hour you play Project Gotham, you get another.

Get New Paint:
To earn some nifty new paint jobs, rack up five hours of gameplay. That's it. Just play.

Unlock Everything:
To unlock it all in one go, enter "Nosliw" as your character name. All tracks and cars will now be at your disposal.
Unlock Lotus Exige:
To unlock the Lotus Exige, get 50,000 total Kudos.

Unlock Panoz Esperate:
To unlock the Panoz Esperate, get 25,000 Kudos.

Unlock the VW Beetle:
To get the Beetle, simply get 1000 Kudos on easy difficulty.

To get the Escudo Pikes Peak version rally car you must have 100,000 kudos on every race. Beware that this car can give you a hard time driving. This car is for expert drivers.

To get everything in the game: all the cars, paintjobs, etc. when you type in your name, name yourself Nosliw - case - sensitive - Wilson backwards. Now you will have everything including the Ferrari F50 - my favourite car!