My previous Spanish teacher was actually riding on a bus in Argentina on a mountain road. She was wondering why her bus had no mirrors and just cords that jiggled around on bumps. The buses just ripped around corners hundreds of feet above the side of the mountain missing each other by a matter of inches, and she concluded that the mirrors had probably been ripped off in close encounters.
Narrow road in the cities are the worst. I dare you to spend a week here. Around the corrupt cops, the "wachiturros" and the way people drive/speak, either:
A) You leave before the week is over or
B) You get kidnapped/killed/scammed