The plug-in hybrid electric vehicle (PHEV) is surging in popularity. Worldwide PHEV sales increased from 569,000 vehicles in 2019 to 4.2 million in 2023—a growth percentage that exceeded both battery-electric (BEV) and traditional hybrid (HEV) vehicles. With the BEV market in the United States seemingly stalling, plug-in hybrids are again being seen by automakers as […]