Group 1 - The core viewpoint of the article highlights that China Automotive Engineering Research Institute Co., Ltd. has applied for a patent for a method and system to improve the accuracy of aerodynamic drag coefficient testing for modified prototype vehicles [1] Group 2 - The patent application, published as CN121234822A, was filed on October 2025 and focuses on enhancing the precision of aerodynamic testing through a series of analytical and validation processes [1] - The company, established in 2001 and located in Chongqing, has a registered capital of 1,004.18 million RMB and is primarily engaged in professional technical services [2] - China Automotive Engineering Research Institute has invested in 38 companies, participated in 5,000 bidding projects, and holds 2,072 patents along with 378 trademark registrations [2]