G.M. Chief, in China, Challenges Planned Bans of Gasoline Cars As the country joins others taking aim at combustion engines, Mary Barra of G.M. said customers, not government rules, should choose car technologies. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:At War: What Happened to this Afghan Prisoner While in the Custody of NATO Troops?Ducking and Weaving: Corbyn’s Vanishing Act on BrexitLean In’s Sheryl Sandberg ProblemThe Saturday Profile: The ‘It’ ’80s Party Girl Is Now a Defender of the Catholic FaithHuawei, Angela Merkel, Kevin Hart: Your Friday BriefingAt War: Afghan War Casualty Report: Nov. 30-Dec. 6