Mitsubishi’s motorsport debut was in touring car racing in 1962, when it entered its Mitsubishi 500 Super DeLuxe in the Macau Grand Prix in an effort to promote sales of its first post-war passenger car. In an auspicious debut, the diminutive rear-engined sedan swept the top four places in the “Under 750 cc” category, with Kazuo Togawa taking class honours. The company returned the following year with their new Colt 600 and again swept the podium with a 1–2–3 in the “Under 600 cc” class. In its final year of competition with touring cars in 1966, Mitsubishi scored a podium clean sweep in the “750–1000 cc” class of the 1964 Japanese Grand Prix with the Colt 1000, their first front-engined competition vehicle.

The company began concentrating on the Japanese GP’s emerging open-wheel “formula car” categories from 1966, winning the “Exhibition” class. They also scored class 1–2 in 1967 and 1968, and reached the podium in 1969 and 1970. They finished on a high with an overall 1–2 in the 1971 Japan GP, with the two litre DOHC F2000 driven by Kuniomi Nagamatsu.

In October 2005, MMAL introduced the Mitsubishi 380 to the Australian market as the replacement for its long-running Mitsubishi Magna, and the sole vehicle being built at its Australian assembly plant at Clovelly Park. Despite an investment of AU$600 million developing the car, initial sales projections have so far proven optimistic; after only six months Mitsubishi scaled back production from 90/day, and reduced the working week from five days to four. It remained an ongoing concern in the Australian auto industry as to whether this would be sufficient to restore the plant to profitability and ensure its long term survival.

The drop in local sales could not be mitigated by exports outside of the Australian and New Zealand market. On February 5, 2008 Mitsubishi Motors Australia announced it would be closing down its Adelaide assembly plant by the end of March. Between 700 and 1000 direct jobs would be lost and up to 2000 jobs will be lost in industries supporting Mitsubishi’s local manufacturing operations.