MORE TIPS FOR DRIVING IN PORTUGAL
Note that you should not do the following things while driving: crossing solid white lines, running red lights, and ignoring or resisting orders from policemen, among many others. Your license to drive can be revoked on the spot, leaving you with a hefty fine and having to scramble to find another mode of transportation. Always pass on the left; passing on the right will result in a fine of €1250.
Tolls are unmanned in many spots, requiring exact change or a Via Verde pass, which is automated and affixed to the windshield. Via Verde pre-paid passes can be purchased at most gas stations or at the rental car company when arriving in Portugal. The pre-payment is usually activated in multiples of €20. Unused portions cannot be refunded. The following roads are toll roads:
-A8 (Lisbon-Torres Vedras)
-A22 (Lagos-Castro Marim)