Cadillac's XTS, shown at a China launch event earlier this year, is helping the brand gain traction in China's hot luxury market. Photo credit: General Motors Co.

Through the first half of the year, General Motors (NYSE:GM) has remained China's top-selling automaker -- despite fierce pressure from Volkswagen (OTC:VWAGY) and a slew of upstart rivals, including fast-growing Ford (NYSE:F).

GM's sales were strong again in July, as more Buicks and Cadillacs found their way to Chinese buyers. In this video, Motley Fool contributor John Rosevear looks at what's working for GM in China -- and at how GM will build on its success in the Middle Kingdom.