From Aircraft Engines to Global Automaker: The Complex Evolution of the Three Diamonds
Mitsubishi Motors began as a shipbuilding division, survived the forced dismantling of Japan's industrial conglomerates, and grew through a web of global alliances. From rebadging cars for Chrysler to pioneering four-wheel drive, the company has spent over a century navigating corporate rescues, scandals, and the shifting tides of international manufacturing.
The automotive roots of Mitsubishi trace back to 1917 with the hand-built Model A, but the company truly found its industrial footing after merging with Mitsubishi Aircraft Co. in 1934 to form Mitsubishi Heavy Industries. Following the Second World War, Allied powers dismantled the zaibatsu conglomerates, forcing the company to split into three regional entities. By the 1960s, these branches reintegrated, and in 1970, Mitsubishi Motors Corporation was officially established to centralize automotive production under the leadership of engineer Tomio Kubo.
Mitsubishi’s growth strategy relied heavily on international partnerships. In 1971, it sold a 15% stake to Chrysler, a move that facilitated entry into the American market through rebadged models like the Dodge Colt. This alliance eventually led to the creation of Diamond-Star Motors in Illinois, a joint venture that produced platform-sharing vehicles. However, the relationship soured as Chrysler felt encroached upon by its partner, leading to a gradual divestment that concluded in the early 1990s. The company also played a critical role in the development of other manufacturers, supplying technology to Malaysia’s Proton and South Korea’s Hyundai.
The company has faced significant turbulence, including a 2005 emergency rescue following a product recall scandal and the 2016 fuel-efficiency crisis that prompted Nissan to acquire a controlling stake. Today, Mitsubishi operates within the Renault–Nissan–Mitsubishi Alliance. As it looks toward 2026, the firm plans to pivot away from developing its own platforms for the Japanese market, opting instead to utilize vehicle bases provided by Nissan, marking another chapter in its long history of adaptation and strategic collaboration.
The iconic three-diamond logo, which predates the automotive division by nearly a century, reflects the company's name: 'mitsu' for three and 'hishi' for water caltrop or rhombus. This emblem, shared across the vast Mitsubishi keiretsu, serves as a constant link to the company's origins in the Tosa clan, even as the automotive arm continues to evolve through global integration and the transition toward hybrid and electric vehicle technologies.
Source: Mitsubishi Motors
