No
Foreign plated tourists` cars are getting temporary import permission (TIP). Its for tourist vehicles. This will give you an aduana oficcer at the border, it can be from 0(denied)-1 day to up to 8 months. Its not fixed, its 1 day- 8 months, may be only 30 days or 2 months, you got the idea, you can`t plan it ahead. 180 IDK where from this number is.
Concerning extension one must justify why on earth he needs it and it can be from 0 days(extension denied) up to 8 months, once again the aduana officer decides how much to give you. Pre-covid the reasons were like death or illness of somebody, or the car is broke etc.
No. Residents can`t bring a foreign plated car in no case as this permission is for tourists! 0 days, entry denied.
Exception: Residents can bring a car 1 time for free shortly after obtaining residency.
Argentinians can`r do it in no case. Unless they live abroad and bring a prove from Arg consulate abroad that they will be tourists in their own country.
this one is true(from my own experience at least)