Bumper beam comprising: - a first end portion and a second end portion, - a center beam contiguous with and oriented between the first end portion and the second end portion, wherein the center beam comprises a front face and a back face; wherein the center beam has a center section and end sections at opposite ends of the center section, the end sections being adjacent to the end portions, respectively, wherein the center beam comprises horizontal and vertical ribs extending from the front face and the back face and/or between the front face and the back face, wherein the bumper beam is made of a plastic material wherein a cross section of the center section is reversed with respect to a cross section of the respective end sections, so that the cross section at the end of the beam is mirror image of the cross section at the center of the beam, such that a load transfer path is created along the center beam from the center section via the end sections to the end portions characterised in that a height of the center section is less with respect to the height of the end portions, such that a first side edge of the bumper beam at the center portion is offset with respect to a second side edge of the bumper beam at an adjacent end portion, creating an offset distance between the respective side edges wherein a distance between opposite first side edges of the center section at a central axis of the bumper beam is less than a distance between opposite second side edges of the end sections and/or the end portions wherein the first and second side edges form a single smooth side edge of the center beam and/or bumper beam wherein diagonally oriented ribs are provided in at least a portion of the center beam and wherein the diagonally oriented ribs extend between the vertical and/or horizontal ribs wherein the diagonally oriented ribs are provided in the end sections of the center beam. - a first end portion and a second end portion, - a center beam contiguous with and oriented between the first end portion and the second end portion, wherein the center beam comprises a front face and a back face; wherein the center beam has a center section and end sections at opposite ends of the center section, the end sections being adjacent to the end portions, respectively, wherein the center beam comprises horizontal and vertical ribs extending from the front face and the back face and/or between the front face and the back face, wherein the bumper beam is made of a plastic material wherein a cross section of the center section is reversed with respect to a cross section of the respective end sections, so that the cross section at the end of the beam is mirror image of the cross section at the center of the beam, such that a load transfer path is created along the center beam from the center section via the end sections to the end portions characterised in that a height of the center section is less with respect to the height of the end portions, such that a first side edge of the bumper beam at the center portion is offset with respect to a second side edge of the bumper beam at an adjacent end portion, creating an offset distance between the respective side edges wherein a distance between opposite first side edges of the center section at a central axis of the bumper beam is less than a distance between opposite second side edges of the end sections and/or the end portions wherein the first and second side edges form a single smooth side edge of the center beam and/or bumper beam wherein diagonally oriented ribs are provided in at least a portion of the center beam and wherein the diagonally oriented ribs extend between the vertical and/or horizontal ribs wherein the diagonally oriented ribs are provided in the end sections of the center beam.