In Mexico, particularly in Mexico City, a Volkswagen minibus used for public transportation.
Painted white and green (like the peseros and the good taxis). In some cases the front shocks have been fiddled with, so that it rides low in the back and very very high in front, which makes it look even funnier than usual.

They are cramped and usually smell of gas inside. Consider them as you last transportation option, after the pesero.