An energy absorbing assembly for attachment to a vehicle, comprising: a beam comprising a first end portion and a second end portion, wherein the beam comprises a curved portion contiguous with and oriented between the first end portion and the second end portion, the curved portion being arced in a direction orthogonal to a lengthwise direction of the beam, wherein the curved portion comprises a front side and a back side, the assembly characterized by; a first crash can extending from the first end portion of the beam, the first crash can including a first cavity formed by a first set of sides extending from a first attachment face, and a first protrusion located in the first cavity, coupled with and projecting forward from the first attachment face in the lengthwise direction toward the front side of the beam, the first crash can extending behind the back side of the beam at the first end portion; and a second crash can extending from the second end portion of the beam, the second crash can including a second cavity formed by a second set of sides extending from a second attachment face, and a second protrusion located in the second cavity, coupled with and projecting forward from the second attachment face in the longitudinal direction toward the front side of the beam, the second crash can extending behind the back side of the beam at the second end portion; wherein the protrusions extend away from the attachment faces in the same direction as the sides, wherein the first protrusion extend from the first attachment face by an amount that is greater than or equal to 110% of a distance that the first sides extend from the first attachment face; and wherein the second protrusion extend from the second attachment face by an amount that is greater than or equal to 110% of a distance that the second sides extend from the second attachment face. a beam comprising a first end portion and a second end portion, wherein the beam comprises a curved portion contiguous with and oriented between the first end portion and the second end portion, the curved portion being arced in a direction orthogonal to a lengthwise direction of the beam, wherein the curved portion comprises a front side and a back side, the assembly characterized by; a first crash can extending from the first end portion of the beam, the first crash can including a first cavity formed by a first set of sides extending from a first attachment face, and a first protrusion located in the first cavity, coupled with and projecting forward from the first attachment face in the lengthwise direction toward the front side of the beam, the first crash can extending behind the back side of the beam at the first end portion; and a second crash can extending from the second end portion of the beam, the second crash can including a second cavity formed by a second set of sides extending from a second attachment face, and a second protrusion located in the second cavity, coupled with and projecting forward from the second attachment face in the longitudinal direction toward the front side of the beam, the second crash can extending behind the back side of the beam at the second end portion; wherein the protrusions extend away from the attachment faces in the same direction as the sides, wherein the first protrusion extend from the first attachment face by an amount that is greater than or equal to 110% of a distance that the first sides extend from the first attachment face; and wherein the second protrusion extend from the second attachment face by an amount that is greater than or equal to 110% of a distance that the second sides extend from the second attachment face.