How about just telling 'us' it's from Argentina and banning Argentine members from answering for, say, two weeks?
Do you propose this only for cars from Argentina or would you like all puzzle to start with the country the car is from and members of that country be banned from answering for a certain period?
But it is a fact that what to non-Argentinians is just about as obscure and difficult-to-solve as they come is just a run-of-the-mill everyday car to Argentinians hence isn't really a puzzle at all..!
Does this not apply to all countries, are Malaysian cars not easier for Malaysians, or Swiss cars for the Swiss, or South African cars for South Africans, or any car for the members of the country the car is from, especially the mass produced more modern ones?
This puzzle car just happened to be very well known in Argentina, it was built until the mid 80's, which means anybody over 20 has seen thousands of them, many are still around today, but not all puzzles featuring cars from Argentina are solved by Argentine members.