Nikola Corp. is tapping a former General Motors Co. vice chairman to serve as its CEO, replacing the current CEO after less than a year of running the electric truck maker.

Rivian Automotive Inc. is reducing its headcount by 6%, but sparing assembly line workers at its sole operational plant in Normal, Ill., from the cutbacks.

Tesla Inc. will deliver its first Semi trucks to PepsiCo Inc. five years after Elon Musk showed off prototypes and began taking deposits for the electric big rigs.