A drive train of a hybrid vehicle comprising an internal combustion engine, a first electric motor including a first rotor, a second electric motor including a second rotor and arranged to be concentric with the first rotor, a gearbox for converting an input torque generated by the first electric motor and/or by the internal combustion engine into an output torque, the second electric motor being arranged such that a torque generated by the said second electric motor is superimposable over the output torque of the gearbox. A first stator is assigned to the first rotor and a second stator is assigned to the second rotor, the first rotor is arranged concentrically with the second rotor and electrically insulated from the second stator. A hybrid vehicle with a drive train as described above.