Abstract: Vehicle body element including: a translucent body (20), a holder body (22) intended to sustain the translucent body (20) to the vehicle, forming an enclosure (32), and a light system (24) extending in the enclosure (32), adapted to diffuse light through the translucent body (20). The translucent body (20) has a constant thickness and is made of a partially opaque material being arranged to let the light emitted by the light system (24) pass through the translucent body (20) when the light system (24) is turned on, the partially opaque material having a light transmittance chosen so that the quantity of natural light passing through the translucent body (20), reflecting on the light system (24) and passing back through the translucent body (20) is sufficiently low to blank the light system (24) when the light system (24) is switched off.