That announcement came after nearly four months of intense talks complicated by concerns about the sharing of intellectual property as Renault sought tie-ups with companies outside their alliance. The deal will see the French carmaker reduce its stake in Nissan to 15% from around 43%. That will see Renault put around 28% of the Japanese automaker in a French trust, crucially making the two more equal partners. While Renault bailed out Nissan two decades ago, it is the smaller automaker by sales. "One almost wonders what's the point of them having any stake in either one, any stake at all," Richter said.

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