Cadillac still has a long way to go in China, but new models are helping sales grow quickly. Next up: The hot ATS sedan will soon arrive at China's Cadillac dealers. Photo: General Motors.

General Motors (NYSE:GM) has long been the market-share leader in China's booming auto market, but profits haven't been as big as you'd expect. The problem: About half of GM's China sales consist of Wulings, popular -- but cheap -- utility vans favored by tradesman. 

GM's CEO has a plan to change that, and that plan starts with Cadillac. Cadillac is a tiny player in China's super-profitable luxury-car marketplace, and it still has a long way to go. But as Fool contributor John Rosevear explains in this video, it's growing quickly -- and GM is putting a big effort behind its surging luxury brand.

Fool contributor John Rosevear owns shares of General Motors. You can connect with him on Twitter at @jrosevearThe Motley Fool recommends BMW and General Motors. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.