Japan's car brands: the alliance map

Name a Japanese car brand and the list comes fast - Toyota, Honda, Nissan, Mazda, Subaru. How they relate to each other is the less obvious part. Unlike Europe or the US, this is not mainly a story of famous badges sold abroad - Japan’s carmakers stay overwhelmingly Japanese-run. What’s tangled is the web between them: Toyota holds stakes in three of the rivals it competes against, and Nissan, Mitsubishi and Renault have been bound together by a quarter-century-old cross-shareholding pact that a 2025 merger attempt with Honda tried, and failed, to simplify.

Toyota’s web

Toyota owns three car brands outright - Toyota, Lexus and Daihatsu - and holds minority stakes in four more Japanese makers without controlling any of them. Toyota is Japan’s largest automaker by volume, built on a value ladder that runs from Daihatsu’s kei cars up through the mainstream Toyota lineup to Lexus at the top - all three answer to the same parent, with Lexus as the luxury division rather than a separate company. Daihatsu specializes in kei cars and compacts for Japan and Southeast Asia. Beyond that ladder, Toyota holds a 20% stake in Subaru, 5.1% in Mazda and 4.9% in Suzuki, three companies it also competes against - the stakes fund joint EV and connected-car projects and shared plants, and each partner still designs, builds and sells under its own name. A fourth stake, 4.6% of the truck and pickup maker Isuzu, taken in 2021, follows the same pattern. Toyota’s truck subsidiary Hino moved out of its direct control in April 2026, when it merged with Daimler Truck’s Mitsubishi Fuso under a new listed holding company, Archion, in which Toyota and Daimler Truck each plan to keep about 25%.

Honda

Honda is the one major Japanese carmaker with no group logo standing next to it - engines, motorcycles, and small jets sit alongside its cars, and it has stayed independent through decades of consolidation elsewhere in the industry. Acura carries its premium models in North America, badged simply as upper Honda trims at home in Japan. Independence nearly ended in December 2024, when Honda and Nissan signed a memorandum of understanding to explore a merger that would have created the world’s third-largest automaker by sales. The deal collapsed by February 2025 after Honda pushed to make Nissan a subsidiary rather than a merger of equals, a structure Nissan rejected. The two still cooperate on shared software and electronics.

The Nissan-Mitsubishi-Renault alliance

Nissan, Mitsubishi and Renault run as three separate companies with three separate lineups, but their capital structures have been intertwined for 25 years. Renault holds about 15% of Nissan today, down from a controlling 43% stake before a 2023 rebalancing gave Nissan a matching, non-voting 15% stake in Renault - the French half of the pact, known for compact and budget-focused models in Europe. Nissan, in turn, bought a 34% stake in Mitsubishi in 2016 to rescue it after a fuel-economy scandal, then sold part of that stake back in a November 2024 transaction that brought its holding to about 24% - Mitsubishi runs its own plug-in hybrid SUV lineup and stays a distinct engineering operation. Infiniti, Nissan’s luxury brand sold mainly in the US, rounds out the group. No single company sits above the other two - it is a triangle of cross-holdings, not a hierarchy.

Independent Japanese makers

Several names build cars on their own terms even where a stake exists. Suzuki leads Japan’s kei-car and small-car segment and one of the largest carmakers in India, and takes Toyota’s 4.9% stake without any change to who runs the company. Mazda, known for design-led models like the MX-5 Miata, carries Toyota’s 5.1% stake alongside a jointly operated Alabama assembly plant, with each brand’s own lineup built there. Subaru - built on Fuji Heavy Industries’ aerospace roots and known for all-wheel drive - carries Toyota’s largest rival stake, at about 20%, a relationship that also produced the co-developed BRZ and 86 sports-car twins. And Mitsuoka, based in Toyama, is the genuine outlier: a tiny, founder-run maker with no outside stake at all, hand-building small volumes of retro-styled cars on Nissan and Mazda mechanicals.

The big three Japanese car makers

Toyota, Honda and Nissan are the big three Japanese car makers, the usual name for Japan’s three largest carmakers. The three are not equals. Toyota is several times the size of either rival - the Toyota group, counting Daihatsu and Hino, sold 11.3 million vehicles worldwide in 2025, its sixth straight year as the world’s largest carmaker. Honda is the independent one, in no alliance and with no other carmaker holding a stake in it. Nissan is the one tied to foreign capital, through the 15% cross-shareholding with Renault and its own 24% stake in Mitsubishi. The label is about size, not ownership, and it is under pressure: in 2025 Honda and Nissan both sold fewer cars worldwide while Suzuki, whose Maruti Suzuki arm is the largest carmaker in India, grew.