被指风阻系数造假，马斯克也转发了！阿维塔12公开测试自证

Core Viewpoint - The controversy surrounding Avita's alleged false wind resistance coefficient has gained significant attention, especially after a video by an automotive blogger claimed a discrepancy between the tested and advertised values, prompting Avita to conduct a public wind tunnel test to defend its reputation [2][3]. Group 1: Allegations and Response - An automotive blogger reported that the actual wind resistance coefficient of the Avita 12 model was 0.28Cd, which is 30% higher than the official figure of 0.21Cd [3]. - Following the allegations, Avita's legal department stated that the blogger's claims were "completely false" and emphasized that all technical parameters are based on official releases [3]. - Avita announced a public wind tunnel test to restore its reputation, which took place at the China Automotive Engineering Research Institute [3]. Group 2: Test Results - The public test showed that at a speed of 120 km/h, the measured wind resistance coefficient was 0.217Cd, which is 22% lower than the blogger's reported figure of 0.28Cd [3]. - When the low-resistance wheels were replaced with sport wheels, the coefficient was measured at 0.2326Cd, and with standard mirrors and raised suspension, it was 0.2509Cd [4]. - Opening the front grille resulted in a wind resistance coefficient of 0.2743Cd [4]. Group 3: Design Innovations - Avita's internal sources revealed that the design team implemented various features to reduce wind resistance, including a disc-wing front design, optimized vehicle shape, electronic mirrors, and low-resistance wheel designs [7]. - These innovations aim to enhance aerodynamic efficiency while maintaining aesthetic appeal and practicality [10]. Group 4: Industry Standards and Testing Discrepancies - Industry insiders noted that different testing standards can lead to significant variations in results, emphasizing the importance of consistent testing conditions [8][9]. - The discrepancies in results may arise from the use of non-standard configurations or environmental conditions during testing [9]. - It was mentioned that while minor differences (around 0.01Cd) are acceptable, a 0.07Cd difference is beyond reasonable limits [9]. Group 5: Consumer Awareness and Industry Implications - Experts cautioned that consumers should not overly focus on wind resistance coefficients at the expense of other vehicle attributes, such as comfort and design [10]. - The incident highlights a broader issue of transparency and industry standards, as many companies rely on self-reported data without independent verification [10][11]. - This situation presents an opportunity for the industry to establish stricter testing protocols and enhance third-party oversight [11].