Rental rates are reasonable with unlimited mileage. There are several toll highways running from Canc n to M rida and M rida to Campeche. Gasoline is approximately the same price as in the U.S., but gas stations are not as common. Keep an eye on your gas gauge. Although most gas station attendants are honest, be sure the pump is reset to zero before pumping starts.
Gas is sold by the liter, and a small tip is appreciated by the attendant.
It will take a long time to go a few miles when you can only negotiate the hazards at 5 miles an hour or less. Each village a road passes through has between two and five such topes which are usually marked. If you see this sign, you have ample warning. Don't drive at night to avoid the above and other hazards. Many of the major roads have police or military checkpoints.