A dual drive driveline (201; 202; 203) for a vehicle (101; 102; 103), the driveline comprising: a power source; a hydrostatic pump drivingly engaged with the power source; a first axle; a second axle; a first hydrostatic unit in fluid communication with the hydrostatic pump, the first hydrostatic unit being drivingly engaged or selectively drivingly engaged with the first axle, and the first hydrostatic unit not being drivingly engageable with the second axle; a second hydrostatic unit in fluid communication with the hydrostatic pump, the second hydrostatic unit being drivingly engaged or selectively drivingly engaged with the second axle, and the second hydrostatic unit not being drivingly engageable with the first axle; and a control unit, the control unit being adapted to control a hydraulic displacement of at least one of the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit; characterized by a hydraulic accumulator assembly in fluid communication with at least one of or each of the hydrostatic pump, the first hydrostatic unit, and the second hydrostatic unit; and at least one accumulator valve for selectively fluidly connecting the hydraulic accumulator assembly to at least one of or each of the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit, the accumulator valve having at least three control positions (42.1, 42.2, 42.3); wherein, when the accumulator valve is in the second control position (42.2), the hydraulic accumulator assembly is fluidly disconnected from the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit; and wherein, when the accumulator valve is in the first control position (42.1) or in the third control position (42.3), the hydraulic accumulator assembly is in parallel fluid communication with the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit. a power source; a hydrostatic pump drivingly engaged with the power source; a first axle; a second axle; a first hydrostatic unit in fluid communication with the hydrostatic pump, the first hydrostatic unit being drivingly engaged or selectively drivingly engaged with the first axle, and the first hydrostatic unit not being drivingly engageable with the second axle; a second hydrostatic unit in fluid communication with the hydrostatic pump, the second hydrostatic unit being drivingly engaged or selectively drivingly engaged with the second axle, and the second hydrostatic unit not being drivingly engageable with the first axle; and a control unit, the control unit being adapted to control a hydraulic displacement of at least one of the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit; a hydraulic accumulator assembly in fluid communication with at least one of or each of the hydrostatic pump, the first hydrostatic unit, and the second hydrostatic unit; and at least one accumulator valve for selectively fluidly connecting the hydraulic accumulator assembly to at least one of or each of the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit, the accumulator valve having at least three control positions (42.1, 42.2, 42.3); wherein, when the accumulator valve is in the second control position (42.2), the hydraulic accumulator assembly is fluidly disconnected from the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit; and wherein, when the accumulator valve is in the first control position (42.1) or in the third control position (42.3), the hydraulic accumulator assembly is in parallel fluid communication with the hydrostatic pump, the first hydrostatic unit and the second hydrostatic unit.