Three South Korean vehicle brands, all belonging to Hyundai Motor Group, surpassed their Japanese and German rivals in a United States quality ranking.

Hyundai luxury brand Genesis, Kia and Hyundai ranked first, second and third, respectively, in the J.D. Power 2018 US Initial Quality Study, for the fewest glitches and design flaws per 100 new vehicles.

J.D. Power said Genesis ranked highest in overall initial quality with a score of 68 problems per 100 cars. Kia (72) ranked second and Hyundai (74) ranked third. This is the first time that three Korean brands are at the top of the overall ranking, and it is the fourth consecutive year that Kia is the highest-ranking brand.