I worked in Mexico for about a year and a half in the mid-90s and drove between Tucson and southern Sonora every month. I sort of liked the Mexican driving style. Nobody was too concerned about little things like stop signs and lane markings, but NOBODY wanted to get in an accident.
One thing that took a little getting used to was when you’d come up behind a slower vehicle on the highway and he’d put on his left turn signal. That meant either “Go ahead and pass,” or “I am about to turn left,” and you’d better guess correctly.
These days I would never set foot across the border for any reason. No need, since a large part of Mexico is already here.