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. Children under 12 years old are prohibited from sitting in the front seat and are required to be fastened in the appropriate style chairs for their age in the back.

Speed Limits
Speed limits in Portugal are as follows: City - 30mph/50kph, Open Roads - 54mph/ 90kph, Highways - 72mph/120kph.

Rules of the Road
At the junction of two roads of equal size, traffic coming from the right has priority unless otherwise signified. Vehicles already in a traffic circle have priority over those about to enter.

Parking
'Blue zone' parking exists in many Portuguese towns. You can obtain a cardboard disc, free of charge, from either the police or local motor club offices. Central Lisbon offers very little on-street parking. Parking cars facing against the flow of the traffic is illegal.

Tolls
There is a toll highway, the 'Auto-Estrada,' that goes from Lisbon to Porto.