It's because cars over here are really expensive, and the progress that Europe makes with their cars is way too fast for Brazil and etc. When they bring a new car here, like, the Fiesta, the money they spend to get all the tools and etc, the features the car has, already puts it in a "premium" category, which is not what most people here can afford, so they keep the old version, make a facelift on it, and make it cheaper.
That is why, untill the new Ka, we had 2 different Fiestas on sale. The "New Fiesta" and the "Fiesta Rocam", which is this one:
This is a 2003 european Ford Fiesta, with many facelifts and sold as 2014. The New Fiesta, which is the worldwide one, has a price tag of around 50.000, when the Rocam was 25.000. If Renault brings the new Clio here, i doubt it would cost the same 27.000 that this old mk2 does. It sure will go at 50.000 or so.
tl; dr: Market, market, market, sales, sales, money money. :lol: