An air-guiding device of a front of a passenger car includes an air-guiding element which is movable at least in a subsection, at least in a vertical direction of the passenger car, between a raised position and a lowered position. A splitter and the air-guiding element are connected by a section which is formed from an elastically deformable material and is increasingly elastically deformable with increasing speed of a flow of air around the section. The air-guiding element forms a section of an aerofoil in the lowered position via which a downforce acting in the vertical direction of the passenger car downwards is created when there is a flow of air around the aerofoil in a longitudinal direction of the passenger car from a front to a back of the passenger car.