Improved interior climate, increased comfort and convincing look:

The wind deflector for the front doors guarantees a continual circulation of fresh air and facilitates an optimal ventilation of the interior, even in bad weather. Furthermore the unpleasant build-up of heat through direct sunlight is a thing of the past.

Note:
not in combination with insulated glazing

The image shows a front and rear wind deflector on an Audi Q3.