For a passenger car in ordinary traffic, is unrestricted reversing permitted?

Correct answer

No; only in the legal cases and over the minimum necessary distance.

No. Article 80 generally prohibits it, with exceptions when you cannot move forward or change direction, and for manoeuvres complementary to another requiring it, always covering only the minimum necessary distance. When assisting stopping, parking or joining traffic, do not exceed 15 metres or enter a junction. That 15-metre limit does not apply to inability to move forward, but unnecessary or dangerous distances remain unauthorised. It is prohibited in ordinary motorway and autovía traffic. Reverse slowly, signal and check safety under article 81.