provided by Travel in Spain by Car
Travel by car is a viable option in Spain as there are many cars hire companies, though they can get heavily booked during the holiday season.
Car hire requires you to have a driving license and a valid passport.
Taxis are efficient as well as they are one of Spain's quickest means of transport. But they tend to be quite expensive, with varying rates and compounding charges, which is why you are advised to fix the charges before travel.
In major Spanish cities, underground metro is a very convenient means of travel to avoid traffic congestion.