General Motors provided Wednesday the most comprehensive picture yet of how its “all-electric future” will take form—quickly, efficiently, and profitably, as the company emphasized. With a no-cameras presentation to press and investors, the company previewed 11 fully electric vehicles in different stages of development. Building…General Motors provided Wednesday the most comprehensive picture yet of how its “all-electric future” will take form—quickly, efficiently, and profitably, as the company emphasized. With a no-cameras presentation to press and investors, the company previewed 11 fully electric vehicles in different stages of development. Building…General Motors provided Wednesday the most comprehensive picture yet of how its “all-electric future” will take form—quickly, efficiently, and profitably, as the company emphasized. With a no-cameras presentation to press and investors, the company previewed 11 fully electric vehicles in different stages of development. Building…General Motors provided Wednesday the most comprehensive picture yet of how its “all-electric future” will take form—quickly, efficiently, and profitably, as the company emphasized. With a no-cameras presentation to press and investors, the company previewed 11 fully electric vehicles in different stages of development. Building…