Construction of a gearbox (G) for a hybrid vehicle having a drive train oriented transversely to the direction of travel (x) of the hybrid vehicle, wherein the gearbox (G) has a drive shaft (G1), an intermediate shaft (G3), a differential gear (A) and exactly one electric machine (E), which is configured to drive the hybrid vehicle and has a rotatable rotor and rotationally fixed stator, - wherein the drive shaft (G1), intermediate shaft (G3), differential gear (A) and rotor of the electric machine (E) have axes of rotation (G1a, G3a, Aa, Ra) arranged axially parallel to one another, - wherein the drive shaft (G1) forms a torque-transmitting interface (GV) with a combustion engine (VM) of the hybrid vehicle or is connected to such an interface via a clutch (K0) or via a freewheel, - wherein the differential gear (A) has torque-transmitting interfaces with drive shafts connected to drive wheels (DW) of the hybrid vehicle, - wherein the gearbox (G) is configured to provide different transmission ratios between the drive shaft (G1) and an output shaft (G2) arranged coaxially with the drive shaft (G1), - wherein torque is transmitted between the output shaft (G2) and differential gear (AG) via the intermediate shaft (G3), - wherein the rotor is permanently connected via a constant transmission ratio either to the drive shaft (G1) or to a further shaft (Gx) of the gearbox (G), which is involved in the formation of the transmission ratio of the gearbox (G), - wherein the axis of rotation (Ra) of the rotor is arranged spatially above a connecting line between the axis of rotation (G1a) of the drive shaft (G1) and the axis of rotation (Aa) of the differential gear (A), characterized in that - the axis of rotation (G3a) of the intermediate shaft (G3) is arranged spatially below the connecting line . - wherein the drive shaft (G1), intermediate shaft (G3), differential gear (A) and rotor of the electric machine (E) have axes of rotation (G1a, G3a, Aa, Ra) arranged axially parallel to one another, - wherein the drive shaft (G1) forms a torque-transmitting interface (GV) with a combustion engine (VM) of the hybrid vehicle or is connected to such an interface via a clutch (K0) or via a freewheel, - wherein the differential gear (A) has torque-transmitting interfaces with drive shafts connected to drive wheels (DW) of the hybrid vehicle, - wherein the gearbox (G) is configured to provide different transmission ratios between the drive shaft (G1) and an output shaft (G2) arranged coaxially with the drive shaft (G1), - wherein torque is transmitted between the output shaft (G2) and differential gear (AG) via the intermediate shaft (G3), - wherein the rotor is permanently connected via a constant transmission ratio either to the drive shaft (G1) or to a further shaft (Gx) of the gearbox (G), which is involved in the formation of the transmission ratio of the gearbox (G), - wherein the axis of rotation (Ra) of the rotor is arranged spatially above a connecting line between the axis of rotation (G1a) of the drive shaft (G1) and the axis of rotation (Aa) of the differential gear (A), - the axis of rotation (G3a) of the intermediate shaft (G3) is arranged spatially below the connecting line . <EOS>