人民财讯9月29日电，9月28日，东风汽车新一代马赫动力发动机点火成功，实现最高热效率超过48%， 再度刷新行业纪录。 ...

Core Viewpoint - The article discusses the increasing competitiveness of Chinese engine manufacturing, highlighting advancements in technology and efficiency, particularly in the context of the 2025 Shanghai Auto Show and interviews with Japanese automotive executives [3][6]. Group 1: Chinese Engine Development - Chinese manufacturers are making significant strides in engine technology, with some achieving thermal efficiency rates exceeding 40% [3][5]. - The Zhejiang Geely Holding Group's "Zeekr 9X" plug-in hybrid version reportedly has a thermal efficiency of 46% for its 2L turbocharged engine [5]. Group 2: Perspectives from Japanese Automakers - Mazda's president, Akira Marumoto, acknowledges the improvement in the technical level of Chinese-made engines but notes that the approach to thermal efficiency differs from Mazda's [6]. - Chinese engines are often designed to be integrated into hybrid systems, focusing on operating within a high-efficiency range, while Mazda's new SKYACTIV-Z engine aims to enhance efficiency across all operating conditions, which is more challenging [6].

Group 1: Industry Overview - Over the past 25 years, China's automotive industry has undergone significant changes, with passenger car sales rising from approximately 800,000 units in 2000 to an expected 27.6 million units in 2024, where domestic brands are projected to hold a 65% market share [2] - The evolution of China's domestic automotive brands can be categorized into four stages, from reliance on foreign technology to independent development and innovation in powertrains and electric vehicles [3] Group 2: Competitive Landscape - Domestic brands such as SAIC Motor, BYD, and Geely have demonstrated superior performance and energy efficiency in plug-in hybrid vehicles compared to foreign traditional fuel vehicles, contributing to the rapid increase in market share for domestic brands [4] - The number of domestic automotive companies in China is significantly higher than in other markets, leading to intense competition that drives innovation and cost management [5] Group 3: Technological Advancements - The focus on improving driving range and engine thermal efficiency in plug-in hybrid vehicles raises questions about the value these enhancements bring to consumers, suggesting a need for a more efficient use of resources [6][7] - The development of domestic engines has progressed to a level where performance, emissions, and reliability meet international standards, with significant improvements in thermal efficiency [9] Group 4: Market Dynamics - The push for high driving ranges in plug-in hybrids may lead to unnecessary increases in vehicle weight, which negatively impacts energy consumption, highlighting the importance of optimizing vehicle design for efficiency [8] - The certification of engine thermal efficiency has become a competitive focus, but excessive competition may lead to resource wastage and confusion among consumers [10][13] Group 5: Future Outlook - The automotive industry in China is encouraged to reduce unnecessary competition and focus on creating value for consumers, which will support sustainable development and enhance the international reputation of domestic brands [13]