4. Toyota Camry (343,750, down 3.2%)
The midsize sedan from Toyota Motors (NYSE: TM) was the best-selling car in the U.S. for 15 years running — until 2017. Although the model was updated for the first time in four years this year with a longer wheelbase, among other things, it remains largely the same as it ever was. While it has two new engine options featuring an eight-speed automatic transmission, the styling was critiqued as boring — as some wags put it, it resembles an appliance. But based on its high sales numbers, it may be that a large swath of car buyers are happy with a reliable, albeit utilitarian, vehicle.