This video recently went viral in China. This blogger was skeptical of all those EVs achieving extremely low drag coefficients including a few “record-breaking” numbers. He wanted to see if his Huawei-branded Avitr really has a drag coefficient of 0.21 as advertised. He took his Avitr to get wind tunnel test and the tested Cd is 0.2818 at 120km/h, 30% more inflated than the claimed number. Now what about officially claimed Cd of 0.195 for BYD U7, 0.199 for Geely E8, 0.195 for Xiaomi SU7, etc? In comparison, Model S has a drag coefficient of 0.208.