Maybe Banjersito wants to use the money that they set as a fiansa (lean) that is returned after 180 days to make short term loans, the same as some banks do with some short term loans.
Or they want better control of what is entering or trying to protect the automobil dealers and importers, maybe a well connected politico will start importing RV's to Mexico?
In Mexico the different government agencies do not comunicate with each other and this causes a lot of miss information and headaches for those trying to navigate the paperwork mine fields.
It is only natural that they want the person and the vehicle entering and exiting together, I do not know what the U.S. laws are for a temporary importation of a vehicle are, I am certain that the individual and the vehicle need to leave after 180 days, then of course I have never imported a vehicle to the U.S. maybe one of you that worked for CBP can enlighten us.
navegator