A selection system of a vehicular traction mode of a hybrid or multimodal land vehicle, the vehicle comprising - an internal combustion engine (E) connected to a driveline (T) through a manual gearbox (G) and - an electric motor generator (MG) connected directly to said driveline (T), the gearbox (G) having a respective control lever (L) and a respective gear selection pattern of the gearbox (R, 1 - 5, 1 - 6), wherein said selection pattern comprises a selection travel (LC) transversal to a longitudinal development of the vehicle and comprises a portion of overtravel (eD) aligned and contiguous with said selection travel (LC) and enabling means (SS, VHE and CL) associated with said portion of overtravel, and wherein - the lever is designed to stably engage said portion of overtravel, keeping the gearbox (G) stably in neutral and, at the same time - said enabling means (SS, VHE and CL) are designed to enable a purely electric traction mode, wherein said internal combustion engine (E) is stably deactivated in favour of said electric motor generator (MG), said lever (L) comprising an associated knob (P) on which a monostable push-button (S), associated with a normally-open switch, is located, the selection system being characterised in comprising a processing unit (VHE) designed to enable one of three or more vehicular traction modes, of which - two or more fuel traction modes, wherein said internal combustion engine is activated and - said purely electric traction mode, and wherein said normally-open switch associated with said push-button is electrically connected to said processing unit (VHE) to cycle between said two or more different fuel modes when said gearbox lever does not engage said portion of overtravel (eD) and to prevent the reactivation of said fuel mode and keep the purely electric mode enabled if said push-button (S) is pressed during a step of disengagement of said portion of overtravel (eD). - an internal combustion engine (E) connected to a driveline (T) through a manual gearbox (G) and - an electric motor generator (MG) connected directly to said driveline (T), the gearbox (G) having a respective control lever (L) and a respective gear selection pattern of the gearbox (R, 1 - 5, 1 - 6), wherein said selection pattern comprises a selection travel (LC) transversal to a longitudinal development of the vehicle and comprises a portion of overtravel (eD) aligned and contiguous with said selection travel (LC) and enabling means (SS, VHE and CL) associated with said portion of overtravel, and wherein - the lever is designed to stably engage said portion of overtravel, keeping the gearbox (G) stably in neutral and, at the same time - said enabling means (SS, VHE and CL) are designed to enable a purely electric traction mode, wherein said internal combustion engine (E) is stably deactivated in favour of said electric motor generator (MG), said lever (L) comprising an associated knob (P) on which a monostable push-button (S), associated with a normally-open switch, is located, the selection system being characterised in comprising a processing unit (VHE) designed to enable one of three or more vehicular traction modes, of which - two or more fuel traction modes, wherein said internal combustion engine is activated and - said purely electric traction mode, <EOS>