Toyota CEO Koji Sato promotes standardization of parts among Japanese automakers: A turning point from competition to cooperation in the industry

From Fighting Alone to Collective Breakthrough: The Collaborative Awakening of Japan's Auto Industry

Toyota Motor Corporation CEO Koji Sato recently called publicly for major Japanese automakers to standardize at the component level. This proposal, seemingly a technical adjustment, actually marks a profound shift in the strategic thinking of Japan's auto industry. For a long time, Japanese car companies have used unique supply chain systems and technical barriers as their competitive moats. Giants like Toyota, Honda, and Nissan each went their own way in component design, creating huge costs for brand differentiation. However, in the global race for electrification and intelligentization, this "each fighting on its own" model is facing efficiency bottlenecks.

Sato's remarks are not an isolated case. In July 2026, in an interview with *Automotive News*, he clearly stated that Japanese automakers need to "work closer together," especially in the area of standard parts. Behind this statement is the reality that the Japanese auto industry's position in the global market is under continuous pressure: Chinese electric vehicle brands are seizing market share with their fast-iterating supply chains and platform strategies; Tesla is reducing costs through vertical integration and economies of scale; while European automakers are sharing R&D investments through alliances. If Japanese car companies continue to maintain a highly independent parts system, they will find it difficult to gain advantages in cost, development cycles, and software compatibility.

Component Standardization: The "Second Opening" of Japanese Manufacturing

The supply chain of Japan's auto industry has traditionally been centered around "keiretsu" (series), where each automaker forms a long-term binding relationship with specific parts suppliers. This was once the cornerstone of its lean manufacturing and quality control. However, Sato's proposal hints that this closed network is being re-examined. Component standardization does not mean eliminating differentiation—core modules such as powertrains and chassis structures can still retain exclusive designs—but rather unifying non-core or common parts (such as battery module interfaces, sensor brackets, connector specifications).

This standardization could have multiple impacts on Japan's auto industry:

1. Release of scale effects: Unified design can increase the procurement volume of individual components, reducing per-unit costs. Especially for high-cost electric drive units and battery systems, the heterogeneous schemes currently developed separately by Japanese automakers lead to dispersed procurement scales, unable to compete with Tesla's or BYD's centralized procurement.

2. Enhanced supply chain resilience: Standard parts can be adapted across brands. When a supplier's production is interrupted due to disasters or geopolitical risks, alternative supply from other brands can be accessed more easily, reducing losses from production halts. After the COVID-19 pandemic in 2020, Japanese automakers have become aware of the danger of over-reliance on a single supply chain.

3. Reallocation of innovation resources: After standardizing common parts, automakers can concentrate engineering resources on differentiated areas, such as the electronic and electrical architecture of software-defined vehicles (SDV), autonomous driving algorithms, and human-machine interaction experience. Japan got a late start in in-vehicle operating systems and cloud services, and joint development can help catch up.### A New Balance of Competition and Cooperation

Sato's call also faces challenges. Japanese automakers have long been dominated by an engineer-driven culture, with each company having deep-rooted preferences for technological pathways and design standards. For example, Toyota's hydrogen fuel cell technology route differs significantly from Nissan's e-Power hybrid solution, and standardization may stifle diverse technological exploration. Additionally, antitrust regulations need to be carefully designed to avoid standardization devolving into a disguised cartel.

However, observers point out that the Japanese government has in recent years been promoting joint R&D projects in key areas such as semiconductors and batteries, like the "Rapidus" advanced chip manufacturing alliance. Sato's proposal for parts standardization can be seen as a corporate-level echo of industrial policy. If successfully implemented, Japan's automotive industry will form a new architecture of "standardized base + differentiated top layer," preserving each brand's unique characteristics while sharing underlying infrastructure.

Implications for the Global Automotive Competitive Landscape

From a broader perspective, Sato's initiative reveals the trend of Japanese manufacturing transitioning from "extreme competition" to "co-opetition." In the global tech industry, the success of the Android operating system and open-source software has proven that standardization can foster a more vibrant innovation ecosystem. If Japanese automakers can reach consensus on key components, they may rebuild their collective bargaining power in the era of electrification—especially when negotiating with Chinese, European, and American supply chains, a unified Japanese camp would carry more weight.

Of course, there remains a huge gap from advocacy to implementation. But as the head of Toyota, Sato's statement itself is a significant bellwether: as the global automotive industry enters its second half, Japan's traditional advantage of "craftsman spirit" is merging with "platform thinking." This collaboration starting from components could become a crucial step for Japan's automotive industry to regain competitiveness.