Mercedes-Benz proves small aerodynamic tweaks boost EV range

Mercedes-Benz continues to prioritize aerodynamic design to enhance the efficiency and comfort of its electric vehicles (EVs), as demonstrated by the latest electric CLA with EQ Technology. By implementing small aerodynamic improvements—such as reshaped wheels, refined underbody panels, and tighter seals—the new CLA achieves a drag coefficient (Cd) of 0.21, down from previous models. Mercedes highlights that even a modest 0.01 reduction in Cd can increase long-distance driving range by approximately 2.5 percent, equating to about 230 additional miles annually for a driver covering 9,300 miles. This focus on aerodynamics is part of a long legacy, dating back to the 1930s with pioneering designs like the “Kammback” and record-setting models such as the 1938 W125 “Streamliner” (Cd 0.16) and the recent VISION EQXX concept pushing the Cd as low as 0.17. Beyond improving range, Mercedes-Benz also emphasizes reducing