GM rolls back 'radical' plan to offer only 3-cylinder engines in some China cars - sources

BEIJING (Reuters) - General Motors is backtracking on an aggressive promotion of three-cylinder engines in China that saw some Buick and Chevrolet models offered only in that option - a move which proved highly unpopular and helped sales slide, people familiar with matter said.Three-cylinder gasoline engines are cleaner and more fuel efficient than their conventional four-cylinder counterparts, and automakers are keen to promote them, particularly in China which has some of the world's most..