Ford Motor's China car venture sold 316,139 units in 2009, up 54.5 percent from a year earlier, its Chinese partner said on Tuesday.

In December alone, Changan Ford Mazda, a tie-up between Ford, Chongqing Changan Auto Co and Mazda Motor, sold 27,680 cars, up 61.4 percent from a year earlier, Changan Auto said in a statement.

Overall sales by Changan Auto, a subsidiary of China's third-largest state auto group, came to 1.37 million units in 2009, up 64.1 percent from 2008, the company said.

SAIC Motor Corp, Changan Auto's domestic rival and China's biggest automaker, sold 2.72 million vehicles in 2009, up 57 percent from a year earlier.

SAIC is a manufacturing partner of General Motors and Volkswagen AG.