Barra said a suburban Detroit plant that has produced Chevy Bolts since 2016 will be retooled in preparation for production of electric Chevy Silverado and GMC Sierra trucks scheduled for next year. upcoming EVs far faster than it has its high-end Hummer models and Cadillac Lyriq, which have been rolling out at a snail's pace compared with its traditional vehicles. Global Business and Financial News, Stock Quotes, and Market Data and Analysis