Try gamefaqs.com I don't know what console have you got so i can't give you the correct link.
The cheat is 28740 to unlock the cars.
no there is not a cheat to unlock everything in Need for Speed: Carbon
I don't know. there could be a cheat I think you unlock them by racing the cars.
No there is nto a cheat to unlock all cars in midnight club la don't listen to a person when they say the do because they are LIARS!!!!!!
no
play through the game
no
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1.Super fast start cheat code--IMSPEED 2.Unlock all races cheat code--MATTL66 3.Unlock all paint jobs cheat code--R4MONE 4.Unlock Mater's Speedy Circuit and Mater's Countdown Cleanup cheat code--TRGTEXC 5.Unlimited boost cheat code--VROOOOM 6.Unlock all movie clips cheat code--WATCHIT 7.Unlock all cars cheat code--YAYCARS That's all I know of. I'll type more when I find more!
Yes
you can unlock all cars by entering the code: unlockallthings
no but you can enter the cheat gr8mods at the cheat menu and then customize mcqueen to look like the king then you can call him lightning mcking