These are for the PS3 version of the game, they might work on the 360 version but i am not sure.

I can also only confirm that 2 work for me, as they are the PAL codes.

Apparently, you need an A license or above for these to work. To enter them, pause the game, press R1, and choose 'Sponser Product Code' (i think thats what it is called) and input them there

Gamestop Car (PAL)
B179 8M20 XA09 80FF

Steel Wheels Car (PAL)
Z891 4K88 IN25 79AA

Micromania (i havent had any luck with this, see if you can)
H211 1Z99 LZ00 00BB

BestBuy Car (USA)
bestbuy

Circuit City Car (USA)
circuitcity

Gamestop Car (USA)
gamestop

Wal-Mart Car (USA)
walmart

Have Fun :)

Cool. The only one I don't have is the micromania one. I hope it works. I'll let you know.

I love Burnout! game is the best racing (besides GT).

thanks dude ill see if they work on the xbox 360 version

Awesome.