Metal-plastics composite profile with reduced deformation in the event of temperature differences between the inside and outside, comprising: - an inner profile made of metal; - an outer profile made of metal; and - an insulating profile made of plastics material; means for increasing the flexural rigidity of the metal-plastics composite profile; wherein the means for increasing the flexural rigidity comprises: a reinforcing profile, which is connected to the insulating profile in a shear-resistant manner by means of a fastening element and/or an adhesive bond (28, 30) and/or a positive connection; wherein the reinforcing profile consists of metal or the reinforcing profile consists of GFRP or CFRP; wherein the metal-plastics composite profile comprises a positive connection between the insulating profile and the outer profile and the insulating profile and the inner profile and a sliding connection between the insulating profile and the outer profile in the transverse pull direction in the push direction; characterised in that the metal-plastics composite profile has an E-modulus of at least 20 GPa, preferably at least 40 GPa, and particularly preferably an E-modulus of metal, and in that the metal-plastics composite profile comprises - a shear-resistant connection between the insulating profile and the inner profile. - an inner profile made of metal; - an outer profile made of metal; and - an insulating profile made of plastics material; means for increasing the flexural rigidity of the metal-plastics composite profile; wherein the means for increasing the flexural rigidity comprises: a reinforcing profile, which is connected to the insulating profile in a shear-resistant manner by means of a fastening element and/or an adhesive bond (28, 30) and/or a positive connection; wherein the reinforcing profile consists of metal or the reinforcing profile consists of GFRP or CFRP; wherein the metal-plastics composite profile comprises a positive connection between the insulating profile and the outer profile and the insulating profile and the inner profile and a sliding connection between the insulating profile and the outer profile in the transverse pull direction in the push direction; characterised in that the metal-plastics composite profile has an E-modulus of at least 20 GPa, preferably at least 40 GPa, and particularly preferably an E-modulus of metal, and in that the metal-plastics composite profile comprises a reinforcing profile, which is connected to the insulating profile in a shear-resistant manner by means of a fastening element and/or an adhesive bond (28, 30) and/or a positive connection; wherein the reinforcing profile consists of metal or the reinforcing profile consists of GFRP or CFRP; wherein the metal-plastics composite profile comprises a positive connection between the insulating profile and the outer profile and the insulating profile and the inner profile and a sliding connection between the insulating profile and the outer profile in the transverse pull direction in the push direction; characterised in that the metal-plastics composite profile has an E-modulus of at least 20 GPa, preferably at least 40 GPa, and particularly preferably an E-modulus of metal, and in that the metal-plastics composite profile comprises - a shear-resistant connection between the insulating profile and the inner profile.