Ford's switch to new F-150 spurs double-digit sales drop Keith Naughton, Bloomberg FacebookTwitterEmail 2020 Ford F-150 trucks sit on display at a car dealership in Peoria, Ill., on May 14, 2020.Bloomberg photo by Daniel Acker. Ford Motor Co.'s U.S. sales fell 10% in the final three months of the year, dragged down by low inventory of a redesigned F-150 pickup as the automaker carried out a complex factory changeover. The fourth-quarter decline was less than a 12% drop analysts expected, as a 15% plunge in F-Series truck sales was partially offset by gains in sport-utility vehicle deliveries. The Explorer SUV, which struggled in 2019 with a botched launch, became the best-selling midsize SUV in the U.S. in 2020, with sales up 29% in the fourth quarter, the company said Wednesday.