Rivian announced it will slash both its corporate staff and production this year after reporting more than $1.5 billion in losses for the final three months of 2023. Even as it prepares to unveil an entirely new family of battery-electric vehicles, CEO RJ Scaringe warned the nascent automaker “is not immune” to the headwinds battering the U.S. EV market after four years of record growth. Separately, EV startup Lucid also forecast flattening sales after reporting worsening losses.