The red buses are called especiales or selectivos and cost 20 cents. The fare depends on the distance. The 'trole' goes over Avenida 10 de Agosto from the old city to the north. Everything is ready for the second trole, which will go over Avenida 6 de Diciembre. But at the time of writing this trole was not operational yet, due to money problems.
All taxis are yellow and some are very old.
The minimum fare is 1 dollar, which should pay for a 20-minute drive. At nighttime prices go up and fares have to be negotiated in advance. Two dollars should be enough for a 20-minute drive. Many addresses have house numbers, but I haven't discovered any logic in them. Some houses have even two house numbers.