How do aerodynamic adjustments affect NASCAR race car performance?

26 Tem 21:45

I'm trying to understand the role of aerodynamics in NASCAR. Specifically, how do changes like rear wing angles, front splitter modifications, or underbody airflow tweaks translate to lap time gains? Also, are there diminishing returns where more aggressive setups start to hurt handling? I'd love to hear explanations or examples from people who've studied the physics or seen the effects on track.