Abstract: The invention relates to a vehicle for transporting a biological sample, the vehicle being movable on a circuit, the circuit comprising: —an input path, a first output path and a second output path, —a turn-off enabling the vehicle travelling on the input path to be redirected to the first output path or the second output path, —a first guide path extending along the input path, the turn-off and the first output path, —a guide device which can be configured in: —a first configuration in which the guide device cooperates with the first guide path so as to direct the vehicle to the first output path when the vehicle passes through the turn-off, —a second configuration in which the guide device does not cooperate with the first guide path, enabling the vehicle to reach the second output path.