A quarter panel is the rear side body section of the car. It extends from the door to the rear bumper. This panel influences aerodynamic airflow around the vehicle. Smooth surfaces help maintain stable rear grip. During a side contact incident a damaged quarter panel reduces speed. Teams repair or replace panels between sessions. Officials regulate panel shape under strict templates. Minor bends can affect handling balance. Crews secure panels firmly to prevent vibration. Proper alignment improves airflow efficiency. The panel also displays sponsor graphics clearly. Structural integrity supports overall body strength. The quarter panel plays a key aerodynamic role.
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