The services of the larger reputable firms can be invaluable in case of emergency. Car hire companies can obtain temporary driving permits for hired car drivers. The road network is extremely good, however traffic regulations are strict, with radar and cameras in use by the police. It is illegal to leave the scene of an accident without police permission. Petrol is inexpensive.
Taxis are readily available and offer an efficient, relatively inexpensive service.
All hotels offer fax facilities. Ask permission before photographing people. Avoid photographing airports, docks, telecommunications equipment, government buildings, military and industrial installations.