Japanese automakers are shifting into high gear to capture larger shares of the China car market, which jumped ahead of the United States as the world's largest in 2009.

Nissan Motor Co., which saw an increase of nearly 20 percent in sales in April-September 2009 in China, plans to raise its annual local production capacity to more than 1 million units by the end of this year, up from current 875,000 units, company sources said.

Honda Motor Co., whose 2009 sales in China grew 22.5 percent from the previous year, will boost annual local production to 710,000 units in 2012, up from the current 610,000 units, industry officials said.