The Tesla Model S Plaid’s stated drag coefficient is 0.208.
Drag coefficient, written as Cd, measures how readily an object moves through air. A lower number generally means less aerodynamic resistance, although real-world drag also depends on frontal area, speed, tires, wheels, ride height, and cooling airflow. The Model S’s low, rounded profile helps it cut through the air efficiently despite its large luxury-sedan dimensions.
The 0.208 figure is associated with the refreshed Model S introduced for the Plaid era, which added aerodynamic refinements alongside its tri-motor powertrain. Those refinements included changes to the body, underbody airflow, wheels, and other details intended to reduce resistance and improve range at highway speeds.
Readers may encounter 0.23 on some current Tesla specification pages, while older Model S versions were commonly listed around 0.24. That reflects differences in model year, market, configuration, or published specification. For this trivia question, 0.208 is the established figure used for the Plaid-era Model S.