What is a Carnival? A Carnival is a family minivan built in the Gwangmyeong, Korea, assembly plant and sold worldwide by Kia. Kia is one of only 4 car companies still selling minivans. The other three are Chrysler, Honda and Toyota. Kia's first minivan came out in 1998, so they knew they had to bring their "A" game to the 2024 sales table to compete, which they did with the new top of the line Kia Carnival SX Prestige minivan.