an actuator is longitudinally aligned along a side of the vehicle body in the fore and aft direction of the vehicle , and a lower and upper links connected to the actuator is widely opened and lift the hood , thereby minimizing the occupancy of the actuator and linkage , and preventing interference with adjacent components without changing the structure of the vehicle body . moreover , the hood is lifted high enough for pedestrian safety using a relatively short stroke of the actuator , contributing to a formation of a compact structure as a whole and a prevention of the weight increase of the vehicle .