Where's the Burnout Sonser Product code??

I bought my copy of Burnout Paradice at Circuit City. Where do I get the sponsor product code from? I dont see it on the recipt. Thank you in advance for the help.

the only codes so far are from

Bestbuy, Walmart, and Gamestop - the codes are the names of the stores, if the dont work try caps, cap the first letter, etc .

play around with them till it works, took me a while. the steel wheels on the other hand u should have gotten a liscence with the game if preordered and i think its different for everyone.

One thing, u will not have instant access to the cars right away...u need to upgrade to the Burnout lisence first before u can use them. (that was a little annoying)