The biggest automaker in the U.S. by sales on Tuesday reported a near 21% drop in EV sales for the first quarter of 2024, partly owing to the discontinuation of its best-selling electric model. What Happened: General Motors (NYSE:GM) sold 16,425 electric vehicles in the U.S. in the first three months of 2024, marking a drop of 20.5% year-on-year. The drop is largely due to the 64.3% year-on-year drop in sales of the Chevrolet Bolt electric vehicles which the company discontinued in late 2023. However, despite the production halt, Bolt was the best-selling EV for the company in the quarter, sec…