Power transmission for a motor vehicle

The invention relates to a drive train for a motor vehicle, comprising - a first electric machine (12) with a rotor (18) and a stator (16) for driving a driven axle (24) which coaxially passes through the rotor (18) and has two stub axles (20, 22), - a transmission stage (26) coupled to the rotor (18) and arranged coaxially to the first electric machine (12), - a differential (32) coupled at its input element (34) to an output element (30) of the transmission stage (26), arranged coaxially to the transmission stage (26), and coupled at its output elements (36, 38) to the stub axles (22, 22), - a torque application unit (46, 62) coupled to the differential (32) via an amplification mechanism (44) and arranged coaxially to the differential, wherein the amplification mechanism (44) comprises a coaxially arranged planetary gear with a first amplification sun (52) and an amplification carrier (48) on which a set of amplification planets (50) meshing with the first amplification sun (52) is mounted, and the first amplification sun (52) is coupled to the torque application unit (46, 52). The invention is distinguished in that the amplification planets of the amplification mechanism (44) are designed as stepped planets (50), each with a planet stage of larger diameter (501) and a planet stage of smaller diameter (502), wherein the first amplification sun (52) meshes with the planet stages of larger diameter (501).