style="margin: 0px; padding: 0px 0px 10px; border: 0px; outline: 0px; font-size: 14px; vertical-align: baseline; color: #333333; font-family: Arial, helvetica, sans-serif; line-height: 19px;">Mary Barra, who is a top contender to eventually run General Motors, is considered to have one of the hardest jobs in the global auto industry.Read Full Article »