Mitsubishi Motors Corporation is 1/3 owned by Nissan and 2/3 owned by Mitsubishi Group according to wikipedia: http://en.wikipedia.org/wiki/Mitsubishi_Motors

I seem to recall it took orders from the automobile Ministry for some time, which was fairly common in Japan. If a company took government arranged loans then they would have a big say, like the time they asked Nissan to build Datsun 1200s in the Fuji Heavy Industries factory

In 2004 Mitsubishi joined the Global Engine Alliance to build the World Engine (4B1) which replaced the Sirius 4G6 (Lancer engine). By the way, I've heard that KIA actually makes the best version of the World Engine