A children's ride-on vehicle is disclosed. In some embodiments, the vehicle may include at least one driven wheel and a drive assembly adapted to selectively drive the rotation of the at least one driven wheel. The drive assembly may include at least one electric motor, a battery assembly including at least one battery and adapted to provide a plurality of voltages to the at least one electric motor, and at least one user input device positioned to receive inputs from a child sitting on the at least one seat, and adapted to select among the plurality of voltages and to apply that selected voltage to the at least one electric motor; and an electronics system adapted to detect the applied voltage to the at least one electric motor and to generate at least one of an audio output and a visual output based, at least in part, on the applied voltage.