Vehicle light comprising - a container body that delimits a containment seat that houses at least one light source suitable to emit, when electrically powered, a plurality of light rays (Ri) defining a light beam to propagate outside of the vehicle light, - a lenticular body, that at least partially closes the containment seat and is suitable to be crossed by said light beam produced by the light source, - a light guide facing, in correspondence of a light inlet wall, to said at least one light source, so as to receive the light beam from this and transmit it to an light outlet wall, facing the lenticular body, - wherein the light guide comprises a body having a prevailing longitudinal extension that defines the propagation direction of the light beam inside the body by total internal reflection, a first and a second side wall (40,44) substantially parallel to said prevailing longitudinal extension, wherein the body has a first breakline that extends from the first to the second side wall (40,44), characterised by: the first breakline comprising a plurality of first holes, defining cylindrical optics, having circular cross-section, or spherical optics suitable to realise cylindrical or spherical caustics that produce, through successive refractions, a scattering of said light rays (Ri) towards the light outlet wall so as to emit a light beam with opalescent effect, wherein said first holes are adjacent to each other without interruption, wherein said first holes of the first breakline are pass-through with respect to a thickness of the body of the light guide, penetrating from a first face to a second face of the body for a depth equal to said thickness. - a container body that delimits a containment seat that houses at least one light source suitable to emit, when electrically powered, a plurality of light rays (Ri) defining a light beam to propagate outside of the vehicle light, - a lenticular body, that at least partially closes the containment seat and is suitable to be crossed by said light beam produced by the light source, - a light guide facing, in correspondence of a light inlet wall, to said at least one light source, so as to receive the light beam from this and transmit it to an light outlet wall, facing the lenticular body, - wherein the light guide comprises a body having a prevailing longitudinal extension that defines the propagation direction of the light beam inside the body by total internal reflection, a first and a second side wall (40,44) substantially parallel to said prevailing longitudinal extension, the body has a first breakline that extends from the first to the second side wall (40,44), characterised by: the first breakline comprising a plurality of first holes, defining cylindrical optics, having circular cross-section, or spherical optics suitable to realise cylindrical or spherical caustics that produce, through successive refractions, a scattering of said light rays (Ri) towards the light outlet wall so as to emit a light beam with opalescent effect, wherein said first holes are adjacent to each other without interruption, wherein said first holes of the first breakline are pass-through with respect to a thickness of the body of the light guide, penetrating from a first face to a second face of the body for a depth equal to said thickness.