Nissan had high costs compared with other auto makers, said Yukihito Eguchi, a company spokesman, and set bout trying to reduce them when the yen began to rise.

• 日产一位发言人江口由纪仁说,与其他汽车制造厂相较,日产的成本偏高,故在日元升值时即已开始设法降低成本。