This post that was quoted has been deleted.
May I refer you to your own post of 2:55pm Article 2.2
"In the case of private and complementary private transport of persons in vehicles of up to nine seats, including the driver, as many persons as there are seats in the vehicle may travel, provided that they all reside at the same address. In this case, the use of a mask is not necessary."
This is not related to phase one
Also this From El Pais.
Use of vehiclesThe government has decided to backtrack on one of the measures that had been most criticized by the public: restrictions on the use of vehicles by people living together. In a new order, which will come into force at midnight on Sunday May 10, those who live in the same residence will be able to travel in the same car, occupying all of the seats and without having to wear a mask.
This will apply to areas that are in Phase 0 as well as Phase 1 – i.e., the entire country.