China’s car ownership will be over 200 million in 2020. Car sales in China rose 45 percent in 2009 to 13.79 million units. There are about 76 million cars in China at the end of 2009.
It is more likely that China will add 15-25 million cars per year from 2010-2020. So it is more likley that China will have 225 to 300 million cars by 2020.
Clearly it would be best if as many of those cars as possible were very light electric vehicles.