The invention regards a radar calibration system and a method for moving a radar calibration target along the predefined movement path. The system comprises a radar calibration target, having a reflector of a known radar cross section, the reflector having a discontinuous surface mounted on and at least partially surrounding a drive unit for three dimensionally moving the radar calibration target based on control signals. The calibration target further has a localisation unit for determining a position of the radar calibration target. A control unit is configured to generate the control signals based on position information received from the localisation unit and a desired movement path and the movement of the radar calibration target is then executed by the drive unit based on the control signals.