A hybrid drive train for a motor vehicle, comprising an input stage which can be coupled on the input side with an internal combustion engine and a main stage which is coupled or can be coupled on the output side with a differential, which are arranged in a common housing, wherein the input stage has - an input stage-input shaft which can be coupled with the internal combustion engine, - an electric machine with a housing-fixed stator and a rotor arranged rotatably in the stator and - an input stage-planetary gear set with an input stage sun coupled with the rotor, an input stage-hollow wheel coupled with the input stage-input shaft and an input stage web coupled with an input stage-output shaft, on which input stage planets, which intermesh with the input stage sun and the input stage-hollow wheel are rotatably mounted and wherein the main stage has - a main stage-input shaft coupled with the input stage-output shaft, - a Ravigneaux set with a first main stage-sun, a second main stage-sun, a main stage-hollow wheel and a main stage-web, on which a set of first main stage-planets and a set of second main stage-planets are rotatably mounted, wherein the first main stage-planets, on the one hand, intermesh with the first main stage-sun and, on the other hand, with the main stage-hollow wheel and the second main stage-planets, on the one hand, with the first main stage planets and, on the other hand, with the second main stage-sun, and - a main stage-output shaft which is coupled or can be coupled with a differential, which is connected in a rotationally fixed manner to the main stage-web, wherein the main stage-hollow wheel can be fixed to the housing by means of a first brake and the second main stage-sun by means of a second brake, characterized in that the main stage-input shaft is coupled by means of a first main stage-coupling with the first main stage-sun and by means of a second main stage-coupling with the main stage-hollow wheel. - an input stage-input shaft which can be coupled with the internal combustion engine, - an electric machine with a housing-fixed stator and a rotor arranged rotatably in the stator and - an input stage-planetary gear set with an input stage sun coupled with the rotor, an input stage-hollow wheel coupled with the input stage-input shaft and an input stage web coupled with an input stage-output shaft, on which input stage planets, which intermesh with the input stage sun and the input stage-hollow wheel are rotatably mounted and wherein the main stage has - a main stage-input shaft coupled with the input stage-output shaft, - a Ravigneaux set with a first main stage-sun, a second main stage-sun, a main stage-hollow wheel and a main stage-web, on which a set of first main stage-planets and a set of second main stage-planets are rotatably mounted, wherein the first main stage-planets, on the one hand, intermesh with the first main stage-sun and, on the other hand, with the main stage-hollow wheel and the second main stage-planets, on the one hand, with the first main stage planets and, on the other hand, with the second main stage-sun, and - a main stage-output shaft which is coupled or can be coupled with a differential, which is connected in a rotationally fixed manner to the main stage-web,