16 June 2015. Load up a people-carrier with a full load of people, depart from Luz, ping down the A22 and where are you an hour and a half later?
It has been done! You are no longer in Portugal. You are in Spain.
There was no halt at the border, no inspection of passports, no check on anything, just a straight drive over the Guadiana bridge from one country to the next.
The turistas are thinking of having a rest break. Perhaps I should recommend Huelva as it is very close.