Have never seen cars for sale with water bottles on the roofs! Maybe they don’t like Palermo and stay away?
In argentina the water bottle on roof of car is a known signal that the car is for sale. No for sale sign is needed. https://dreamgolive.wordpress.com/2012/06/08/so-…r-in-argentina/
As aficionado points out they are present in several barrios selling cars. But would you buy a second-hand car from a gitano who doesn't have a commercial office?
Right. Not something I would do. Also common to hear stories of car buying swindles. Hard to know if true or just typical stereotype or prejudice.