Even where passing is prohibited, a passenger car may pass, even by moving into the lane for oncoming traffic, ...

Correct answer: bicycle riders.

Where passing is prohibited, you may pass a bicycle even if you enter the oncoming lane, provided it is traveling slowly enough for you to pass safely and you first check that no one is coming toward you. You must not do this to pass a truck or bus, even if it is moving slowly, because the exception does not include them.

Reglamento General de Circulación · Reglamento General de Circulación