plate of the b pillar 3 and on the contact surfaces of the b pillar inner rear side part 4 in order to bring about firmer fixing of the impact protection reinforcing element 1 to the stated components and vibration protection of the impact protection reinforcing element 1 if sufficiently strong adhesion is brought about the impact protection reinforcing element 1 may likewise assume a load bearing function in the vehicle body in addition to the b pillar non illustrated hinge elements may be fixed on the impact protection reinforcing element 1 with fastening devices as described above in the measure for mechanical fastening of an attachment 6 through the outer plate of the b pillar 2 and the inner plate of the b pillar 3 the impact protection reinforcing element 1 thus fulfills the function of stabilizing the surface of the plates of the b pillar 3 4 in the case of hinge elements fastened thereto and at the same time likewise that of absorbing the forces introduced into the b pillar by the hinge elements moreover the impact protection reinforcing element 1 increases the buckling resistance of the entire b pillar the invention also extends to embodiments in which no measures are disposed for mechanical fastening of an attachment in the impact protection reinforcing element 1 in this embodiment the impact protection reinforcing element 1 merely ensures stabilization of the b pillar and support of the surfaces of the b pillar to which surfaces attachments are fastened fig3 schematically illustrates a method of producing the impact protection reinforcing element 1 according.