Two of Kia America’s most popular vehicles ranked number one in their respective categories in the JD Power 2026 U.S. Initial Quality Study (IQS). The 2026 Carnival was number one in the Minivan segment and the K4 took top honors in the Compact Car segment. The K4 was also the second highest ranked vehicle in initial quality overall across the industry and the Kia Mexico manufacturing plant in Nuevo Leon, Mexico, where the K4 is manufactured, earned the prestigious Gold Plant Quality Award for highest initial quality in North and ...