The nation's top automakers reported mixed results to begin 2017 according to their latest monthly sales reports.
Toyota and Detroit's "Big Three" each reported sales declines compared to the beginning of 2016, while Honda and Nissan each reported 6 percent increases to set new records for January.
Honda's flagship division grew by nearly 8 percent as its Acura luxury line remained steady, while Nissan posted a 4 percent gain in its flagship cars but a 36 percent increase by Infiniti.
Among domestic automakers, General Motors sales declined by 4 percent over that span, while Ford sales slid by 1 percent and Fiat Chrysler sales dropped by 11 percent.
GM's Buick fared worst among its four brands with a 28 percent decline, followed by Cadillac at a 4 percent drop and Chevrolet, its largest brand, at 2 percent. GMC was the only GM brand to see an increase at a modest 1 percent.
Ford said that its retail sales increased compared to the previous January, but that sales to rental fleets fell by 13 percent. Its Lincoln luxury brand enjoyed a strong month with a 22 percent sales increase.
Fiat Chrysler blamed its decline on fleet sales, as well, and said that retail sales were flat. FCA's Ram truck brand climbed 5 percent but was offset by declines of 7 percent by Jeep, 9 percent by Fiat, 17 percent by Dodge and 40 percent by Chrysler.
Toyota also reported an 11 percent sales decline last month, with a 25 percent drop in its Lexus brand.
Those six companies comprised more than 75 percent of the U.S. auto market in December, according to numbers from The Wall Street Journal.