https://www.reuters.com/article/us-gm-ceo/gm-ceo-promises-profitable-electric-vehicles-by-2021-idUSKBN1DF272 >General Motors Co plans to launch a new family of electric vehicles in 2021 with batteries costing about 30 percent less than those used on the current Chevrolet Bolt, Chief Executive Mary Barra told investors on Wednesday.