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BDifficulty 2/5

Under Annex III of the Vehicle Regulations for an M1 car, which main exterior mirror is mandatory?

Correct answer

The left one.

The left one. The table also requires the interior mirror when it provides the prescribed field of view. If it does not, the interior mirror becomes optional and the right exterior mirror must be fitted. Both right and interior mirrors are therefore not unconditionally optional; the required combination depends on visibility. Systems and equipment must meet applicable approval requirements.

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All options

  • The right one, regardless of interior-mirror visibility.

  • The left one.

  • The interior one, even if it cannot provide the prescribed field of view.

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