Electric vehicle startup Rivian reported its first-ever positive gross quarterly profit.The company made $170 million in gross profits in Q4 2024, a significant improvement from $600 million in losses during the same period in 2023.Rivian earned $299 million in revenue from selling regulatory credits to other automakers in the same quarter.The company expects moderate profitability in 2025 but warns of potential challenges like changes to government policies and regulations.