Transaction prices for all of 2017 also finished 2 percent higher than last year, slightly slower growth than 2015 and 2016, which was at 2.5 percent.
American Honda's transaction prices rose nearly 3 percent in December 2017 with the Honda brand up 4 percent and Acura flat. The CR-V, Honda's top seller, continued its strong run with prices up 6 percent. In addition, the redesigned Honda Odyssey showed the most improvement, rising 14 percent to top the minivan segment.
Volkswagen Group saw the biggest jump among the major manufacturers with average prices up 8 percent. The Volkswagen brand climbed 9 percent, thanks to its new SUVs, the Atlas and Tiguan, which also are gaining momentum. Porsche climbed 5 percent on the strength of its new Panamera. Audi was up 4 percent with the redesigned A5 and Q5 each rising 10 percent.