An aerodynamic component attached to the lower front portion of a vehicle is designed to modify airflow. This attachment, often a horizontal extension, reduces the amount of air flowing underneath the car. For example, a low-slung sports car might incorporate this feature to improve stability at high speeds.
The primary benefit is the reduction of lift, leading to increased downforce on the front wheels. This improved grip enhances handling and braking performance, particularly at higher velocities. Historically, these features were first adopted in racing to gain a competitive advantage, and their effectiveness has led to widespread implementation in both performance and aesthetically-focused vehicles.