As the market in larger cities matures, the market in Tier 2 and Tier 3 cities is where most of the growth is expected in China's market. An expanding middle class is one source of buyers. One forecast is for 51% of Chinese families having disposable income of 106,000 yuan to 229,000 yuan or between $17,000 and $37,000 by 2020, according to McKinsey. There were only 6% in that income range in 2010, showing how skewed the income distribution was, and why the growth of luxury cars has benefitted BMW, Benz and GM. A new generation of younger buyers is another source of growth- Nissan's chief planning officer, Andy Palmer estimates the youth market at 240 million. This group is being called the Transformers generation. A big surge in buying for SUV's has helped companies such as Ford Motor Company. Benz and Ford plan to add new dealerships, with Benz planning dealerships in 40 new cities and opening 100 new stores in 2014. Audi is planning a new certified used car program to keep used car resale values high....