Nissan Motor Comapny president Carlos Ghosn says he will become chairman of Renault SA in 2005 when current chairman Louis Schweitzer retires, but he will retain his job as president and chief executive of Nissan. A chief operating officer will be appointed at Nissan and perhaps another one at Renault later, Ghosn told reporters, including a just-auto correspondent, during a round table session at the North American International Auto Show in Detroit.