A gear scheme for an automatic transmission, comprising: a transmission input and a transmission output; a first rotating torque-transferring mechanism and a second rotating torque-transferring mechanism, each being independently coupled to the transmission input; a plurality of stationary torque-transferring mechanisms (C3, C4, C5, C6) disposed between the transmission input and transmission output; a first planetary gearset coupled to the first rotating torque-transferring mechanism, the first planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; a second planetary gearset coupled to the first planetary gearset and the first rotating torque-transferring mechanism, the second planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; a third planetary gearset coupled to the second rotating torque-transferring mechanism and the transmission output, the third planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; and a fourth planetary gearset coupled to the third planetary gearset and one of the stationary torque-transferring mechanisms, wherein the fourth planetary gearset includes an input and an output and the third planetary gearset includes an input and an output, the output of the third planetary gearset being coupled to the transmission output and the input of the fourth planetary gearset; and wherein the output of the fourth planetary gearset is coupled to the input of the third planetary gearset, wherein the first planetary gearset includes a sun gear continuously coupled to the transmission input; wherein the input of the third planetary gearset comprises a sun gear and a ring gear and the output of the third planetary gearset comprises a carrier assembly; and characterised in that the input of the fourth planetary gearset comprises a sun gear and the output of the fourth planetary gearset comprises a ring gear, where the ring gears of the third and fourth planetary gearsets (P3, P4) are directly coupled to one another such that rotation of the ring gear of the fourth planetary gearset drives rotation of the ring gear of the third planetary gearset. a transmission input and a transmission output; a first rotating torque-transferring mechanism and a second rotating torque-transferring mechanism, each being independently coupled to the transmission input; a plurality of stationary torque-transferring mechanisms (C3, C4, C5, C6) disposed between the transmission input and transmission output; a first planetary gearset coupled to the first rotating torque-transferring mechanism, the first planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; a second planetary gearset coupled to the first planetary gearset and the first rotating torque-transferring mechanism, the second planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; a third planetary gearset coupled to the second rotating torque-transferring mechanism and the transmission output, the third planetary gearset being coupled to one of the plurality of stationary torque-transferring mechanisms; and a fourth planetary gearset coupled to the third planetary gearset and one of the stationary torque-transferring mechanisms, wherein the fourth planetary gearset includes an input and an output and the third planetary gearset includes an input and an output, the output of the third planetary gearset being coupled to the transmission output and the input of the fourth planetary gearset; and wherein the output of the fourth planetary gearset is coupled to the input of the third planetary gearset, wherein the first planetary gearset includes a sun gear continuously coupled to the transmission input; wherein the input of the third planetary gearset comprises a sun gear and a ring gear and the output of the third planetary gearset comprises a carrier assembly; and characterised in that the input of the fourth planetary gearset comprises a sun gear and the output of the fourth planetary gearset comprises a ring gear, where the ring gears of the third and fourth planetary gearsets (P3, P4) are directly coupled to one another such that rotation of the ring gear of the fourth planetary gearset drives rotation of the ring gear of the third planetary gearset.