One of our favorite things about the city when we first got here was the abundance of these busses known as ghetto busses. They costed 7 pesos at that time and the experience varied from the painfully slow to the hold on to your child super fast. We appreciated the lack of mandated stops and free form nature that has somewhat been squashed by Acabus, a government bus program. There still remain a few though and I took one last week to the central market and got this photo to share.
Steepshot