SHANGHAI (Reuters) -China's commerce ministry will meet industry bodies and automakers including BYD and Dongfeng Motor to discuss increasing sales of "used cars" that were never driven, a person with direct knowledge of the matter said. It comes after Great Wall Motor's Chairman Wei Jianjun said in an interview with Sina Finance last week that a phenomenon called "secondhand cars with zero mileage" had emerged in the Chinese market as a result of the industry's years-long price war.