Tesla CEO Elon Musk said that he expects the Model 3 to achieve an incredibly low 0.21 Cd, which should be enough to make the Model 3 the most aerodynamic mass production car ever made. Tesla is said to use Exa’s digital simulation tools to design its vehicles and Exa’s Vice President of Ground Transportation Applications, Ales Alajbegovic, shared his thoughts on the Model 3’s aero innovations. Like the Model X’s and the new updated Model S’ front fascia, the Model 3 also has a grille-less design.