Considering renting a car in Seville, Spain and traveling in both Spain & Portugal; returning to flu out of Seville. Seeking recommendations of rental firm that will permit two country rental. Also recommendations of a rental company at Seville airport to rent from. Thank-you.
If you do your search on kayak.com, you'll be linked to the major agencies such as Sixt, Hertz, and Autoeurope, and you can then compare cars and prices. None of the major agencies will restrict you from driving into Portugal.
I recommend www.gemut.com. They have guaranteed lowest rates and great service.