Carmakers Nissan and Mitsubishi have said they will increase levels of co-operation between the two firms.
Under the deal, Nissan will make a small van which Mitsubishi will sell in Japan.
Meanwhile Mitsubishi will supply a sports utility vehicle (SUV) to Nissan for sale in the Middle East.
The firms already supply each other with models that they have marketed under each other's brand names in Japan.
This is done under an industry scheme known as Original Equipment Manufacturing.
The companies said that talks for Nissan to provide Mitsubishi with more top end models for the Japanese domestic market were continuing.
They are also considering plans to build the Nissan Navara at Mitsubishi's Thailand factory and contemplating setting up a joint venture "for product planning and engineering of mini cars for the Japanese domestic market".