LeBron James is back to reveal GMC's all-electric Hummer SUV

Last year, basketball star LeBron James introduced GMC's revived (and electrified) Hummer at Super Bowl 2020, and now he's back for the supertruck's electric SUV debut.

True to GMC's promise, the Hummer EV SUV was revealed in full for the first time Saturday during the NCAA Final Four basketball game. In an ad narrated by...