Uruguay:
Vehicle ownership document.
Identity document of the vehicle owner.
If the ownership document does not match the identity document of the owner, a legal document proving ownership must be presented, such as a title deed or a power of attorney.
Mexico
Vehicle registration card.
Official identification (INE, Passport or equivalent)
Current vehicle tax and renewal.
Extras: It is important, but not mandatory, to have a GPS system.
Argentina:
Green card of the vehicle
Official identification of the owner (DNI, Passport or equivalent)
Current vehicle tax
Extras: It is important, but not mandatory, to have a GPS system.