Air Guidance Device for a Motor Car, Particularly for a Passenger Car, and Motor Car

An air guidance device of a motor car, where the motor car has a wheel rotatable around an axis of wheel rotation and the wheel has a wheel rim with an internal diameter, includes an air guidance element assigned to the wheel that has an air guidance surface. Air flowing over the air guidance surface during a journey of the motor car is guidable by the air guidance surface. The air guidance surface extends in a plane running perpendicularly to the axis of wheel rotation, directly borders an inner flank of the wheel rim inwards in a transverse direction of the motor car and/or upwards in a vertical direction of the motor car in a lower region in the vertical direction of the motor car, and extends over less than half of the internal diameter in the vertical direction of the motor car.