Rental Cars in Mexico

With public transportation, or without it, if you have a good number of people, like 4, taxi's are a real deal, and you don't have to think about driving in a foreign country, or parking.

Agreed -with buses, combis, and taxis all plentiful, it's very easy to get around the area and beyond.
And hey, that pickup truck ride from Los Achotes out to Barra de Potosi is not to be missed.

We've never even thought seriously about renting a car in Zihua.