GRID - Nintendo DS
Cheat Codes:
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Enter the Options menu, select the Cheat Codes option, then enter one
of the following codes. An X will appear next to that cheat's name. You
can then activate the cheat by using the touch screen to place a checkmark
next to it, then press A.
All bonuses - Enter 233558 as a code. Win a race to unlock everything.
Drift master - Enter 789520 as a code.
Perfect grip - Enter 831782 as a code.
Invincibility - Enter 161650 as a code.
Ghost car