Nissan Motor Co. will invest up to 600 million euros in Renault SA's new electric vehicle unit, after they signed an agreement to revamp their decades-old capital alliance to allow for more management flexibility and meet growing demand for zero-emission cars, the two automakers said Wednesday.Under the new partnership, Renault will reduce its stake in Nissan to 15 percent from 43.4 percent while the Japanese firm will retain its 15 percent stake in the French partner.The Japanese carmaker could take a less than 10 percent stake in the new EV business called Ampere to be spun off from Renau…READ FULL ARTICLE