Tesla's dominance in the U.S. electric vehicle market slipped below 50% in Q2 as sales surged to a record. Tesla's market share dropped to 49.7% from 59.3% a year earlier, losing ground to GM, Ford, Hyundai, and Kia. Overall U.S. EV sales rose 11.3% year-over-year, with over 330,000 electric vehicles sold in Q2, accounting for 8% of new car sales.