General Motors (GM.NYSE, GMM.U.TSX) said that sales in China grew by 13.4% year-on-year to 205,885 units, a record for the month, AFP reported. The figures mark a rebound from a 1.8% decline in July. The firm sold a total of 1.65 million vehicles in the first eight months of 2011, despite headwinds such as a phase-out of selected tax breaks for government vehicle purchases. However, performance varied considerably across GM’s joint venture partnerships in China. Its passenger car JV with SAIC motor grew by 21.7% yoy in August, but sales from the company’s commercial vehicle JV with FAW Group were down 30.4%. The China Association of Automobile Manufacturers expects sales in China’s car market to grow by 5% this year, substantially lower than the 32% increase last year.