TOKYO/PARIS (Reuters) – Nissan Motor Co Ltd doesn't expect to reach an agreement with top shareholder Renault by year-end on retooling their alliance as some of the Japanese automaker's board members are pushing to move cautiously, people familiar with the matter said. France's Renault SA wants Nissan to invest in a new electric-vehicle unit it plans to spin off as part of a major overhaul. Nissan wants Renault to sell some of its roughly 43% in the Japanese company to put the two carmakers on more equal footing, Reuters has previously reported.