Taxis are everywhere in Acapulco. Since they are unmetered, make sure that you agree on a fare before entering. Always negotiate - they can smell tourist money a mile away. The old Volkswagen beetle cabs are cheaper than newer air conditioned cars. Shared Cabs usually white with yellow run between major destinations and are very convenient. They usually display their destination in large letters and charge a flat fee on $12pesos, irrespective of distance. You should not have to pay more than $50 pesos per cab ride within the Costera area but fares can reach as much as $120 pesos for rides from La Costera to La Quebrada, Princess Hotel Revolcadero Beach and the airport. Alternatively most hotels can arrange for taxi transportation for a fixed fare usually inflated. Prices will usually be about 50% more expensive than for a taxi hailed on the street.
There are several public transportation options: Yellow cabs are 12 pesos per person; buses are 5 pesos or 6 pesos with the luxury of air-conditioning. Because of the sheer amount of taxis here, when one is dining out it is often worthwhile for them to offer a round trip and simply wait around while you have your meal, and they will not charge extra.
Rental CarAlthough the rates aren't always low, and the cheapest cars tend to be manual transmission, renting a car is a good way of getting around the city. Although if you are just planning to stay at the hotel, then it's a no, but otherwise is a good idea. Traffic is not that heavy, except on Spring Break and the Mexican Holidays, and parking in hotels is not expensive 3-4 USD for your stay, and gas is very cheap.
Buses are worth experiencing even if you don´t want to travel on them. Destinations are printed on the front window of each bus. There is no need to be at one of the buses regular stops in order to get on. Just wave your arm or look at the driver. He will stop and encourage you to get in. In fact, drivers will stop and try to get you ride with them if you are even walking in the same direction that they are driving in. The bus system in Acapulco has been fully privatised - each bus is privately owned. This means they can decorate them however they want. Pink buses cruise around blaring out traditional Mexican music, racing against ones decked out in UV lights pulsing out club music into the night air. The complete lack of suspension and the bizarre incentive for the buses to race each other to each bus stop as they compete for passengers makes for an unforgettable ride.
Private Autos It is generally unwise to try to drive yourself around Acapulco. Traffic is heavy and drivers aggressive, parking is scarce, streets do not run in a neat grid, and even change names unexpectedly. Most, if not all streets lack signs indicating their name. In addition, foreign tourists driving rental cars can become targets of the Acapulco police officers, who will accept payment ~$400 pesos for violations in person at the time of pullover, without providing a receipt or proof of violation or clearing of said violation.