It was taken out with one of the updates, forgot which one. It had something to do with the fact of no longer being sponsored by some of the companies, as well as Circuit City going out of business in the U.S. If you have the disc version, you can delete the game data (make sure you back everything up first) and then start the game offline. Don't go online, don't update it, just go into the game. Once there you can get to the sponsor code part and input them in. Save, then go ahead and update. Once you have the cars the update doesn't take them away.
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