Production is now set to begin at the former Detroit-Hamtramck assembly plant, less than two years after GM announced the massive $2.2 billion investment to fully renovate the facility to build a variety of all-electric trucks and SUVs.DETROIT – Shares of the Detroit automakers jumped Friday afternoon following a report that President Donald Trump is considering "significant tariff relief" for the production of vehicles in the U.S.Stocks for General Motors, Ford Motor and Chrysler parent Stellantis shifted ...