2017 Porsche 911 RSR (991)

Close-up of a racing vehicle rear highlighting a large adjustable rear wing and prominent aerodynamic diffuser with multiple fins, designed to enhance downforce and stability on high-speed tracks. Visible rear exhausts and race-oriented tires complete the setup.

Racing car rear with large wing and aerodynamic diffuserHerranderssvensson, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons