Car rental in GTO

[jesm]

No magic bullet that we have found after many rentals in many areas of Mexico.
Avis always wants that huge daily adder for full insurance coverages. They will as an alternative put a hefty ($4-5000 USD) hold against your credit card to cover any damages when you return the vehicle. This approach saves you substantially in total rental costs but shifts the risk to you should you damage the car. We have experienced no damages, so far so good, and the hold on our credit card is promptly cancelled as we return the car in good condition.
One other difference, you and the rental agent will together inspect, in some detail, the condition of the vehicle before you receive it. Every outside scratch, dent etc. is noted as to location and you sign acknowledging the starting condition. Ditto upon return as they compare the drive out condition as noted to the return condition.