Active aerodynamics refers to the ability of a car to adjust its aerodynamic features in response to changes in driving conditions. This is achieved through the use of movable elements such as flaps, wings, and spoilers that can be adjusted to increase downforce, reduce drag, or improve cooling. Examples of cars that feature active aerodynamics include the Porsche 911 Turbo S, McLaren 720S, and Lamborghini Huracan Performante.