Nissan shares tumble to 10-1/2 year low after earnings rout; Renault also suffers

TOKYO (Reuters) - Shares of Nissan Motor Co sank to their lowest in more than a decade on Friday, after deep cuts to the troubled Japanese automaker's earnings forecast and dividend raised questions about its future profitability. Japan's No.2 automaker is reeling from a scandal surrounding former chairman Carlos Ghosn that has also had a knock-on effect on its French partner Renault SA , shares of which hit their lowest in more than seven years after it earlier posted its first annual loss in..