Ford Motor Co. reported a 6.8percent fall in 2021 U.S. vehicle sales on Wednesday, as the automaker struggled to deliver its cars and trucks due to lingering supply-chain bottlenecks and a global chip shortage. The Detroit automaker sold 1,905,955 vehicles in 2021, ending up behind new U.S. leader Toyota Motor Corp. and rival General Motors Co. Ford had sold 2,044,744 vehicles a year earlier. Ford’s shares extended losses to trade down about 3 percent after the sales report. Total U.S. light vehicle sales for 2021 were just under 15 million, according to Wards Intelligence, below the five-year average of 17.3 million from 2015 to 2019. Sales of Ford’s Mustang Mach-E electric crossover were 27,140 for 2021. The company plans to triple annual production of the electric crossover to more than 200,000 by 2023, to meet better-than-anticipated demand. Ford has been focusing on its EV strategy and said on Tuesday it …