I recommend renta de autos Minny at
https://www.facebook.com/profile.php?id=100071506915540&mibextid=9R9pXO

I work with Wendy Fierro and we manage to communicate between English and Spanish. The cost is 800 pesos per day and less if rented for a month. She drops the car off for me at my place and picks it up there for a small extra fee. She has been wonderful to work with.