风阻系数被指造假，阿维塔公开测试“自证”，受邀的马斯克未到场

Core Viewpoint - The controversy surrounding the wind resistance coefficient of the Avita 12 has prompted the company to conduct a public wind tunnel test to validate its claims, revealing that the actual measurements are close to the advertised figures, thus potentially alleviating the dispute [1][3][4]. Group 1: Wind Tunnel Testing Results - The Avita 12 was tested under six simulated conditions, showing a wind resistance coefficient of 0.217Cd at a speed of 160KPH and 0.2175Cd at 120KPH, which aligns closely with the official claim of 0.21Cd [3]. - The wind resistance coefficient varied between 0.2327Cd and 0.2973Cd under different configurations, such as changing to sport wheels and using traditional mirrors instead of electronic ones [3][5]. Group 2: Origin of the Controversy - The controversy began when an automotive blogger claimed that their independent test showed a wind resistance coefficient of 0.28Cd for the Avita 12, significantly higher than the company's claim, which sparked widespread discussion [3][4]. - The lack of standardized testing procedures in the automotive industry has led to discrepancies in wind resistance measurements, with different testing institutions yielding varying results [4][6]. Group 3: Importance of Wind Resistance Coefficient - In the context of electric vehicles, a lower wind resistance coefficient is crucial for enhancing range, with studies indicating that a reduction of 0.010 in the coefficient can increase the range by approximately 5 kilometers [6]. - The automotive industry is increasingly focused on reducing wind resistance to improve vehicle performance, with manufacturers employing various design strategies to achieve coefficients below 0.2Cd [6][7].