The contact owns a 2014 Kia Optima. The contact stated while stopped at a light, she saw smoke coming from the front of the vehicle when the vehicle started to spark and then caught fire. No warning lights illuminated. The origin of the fire was unknown. The fire department was able to extinguish the fire. The vehicle was towed to an independent mechanic where it had not yet been diagnosed. A police report was filed. No injuries were sustained. The dealer was not notified of the failure. The manufacturer was not notified of the failure. The approximate failure mileage was 146,000