General Info
Madrid is the political, cultural and geographical center of Spain, and is also the hub of much of the country's road network. Spain has nearly 100,000mi/160,000km of roads. The major superhighways require a toll and are generally well-maintained. Provinical roads vary in quality, but all major highways are of superior quality.
Requirements
To rent a car, you must be at least 21 years old (age may vary by car category) and have held your license for 1 year. Drivers under the age of 25 may incur a young driver surcharge. Seatbelts are mandatory. Child seats are mandatory for children up to age 3 and children under 12 may not sit in the front seat.
Speed Limits
Speed limits in Spain are as follows: City 31mph/50kph Open Roads 55mph/90kph Highways 74mph/120kph
Rules of the Road
Traffic travels on the right and if a car approaches you and signals an intention to pass, you must turn on your right directional to signal that the road ahead is clear.
Tolls
Spain's expressways, the "autopistas," are toll roads and are identified by the letter A.
Parking
"Blue zone" parking exists in Spanish cities. Marked by signs that say "Zona Azul," parking is valid for 2 hours and parking discs for this zone are available at most hotels and town halls.