CEO of auto giant Stellantis Carlos Tavares speaks to journalists during a joint media event by Stellantis and Leapmotor in Hangzhou, in eastern China's Zhejiang province on May 14, 2024.DETROIT – Automaker Stellantis plans to once again reduce its U.S. employee headcount through a broad voluntary buyout, as the company attempts to reduce costs and boost profits.In an email to employees Tuesday morning, the company said it would offer a voluntary separation program to non-union U.S. employees at the vice pr ...