Suntrup Kia - Saint Louis, MO United States Suntrup Kia is a new car Kia dealership located in St. Louis, MO - South County area. Suntrup has a full inventory of new Kia Optima, Sorento, Soul, Forte, Rio and Sedona. We also have a large inventory of certified used cars. Suntrup Kia’s services include sales, Kia financing, used car financing and service. Hours of operation: Sales - Monday, Wednesday, Friday 9am to 9pm. Tuesday, Thursday, Saturday 9am to 6pm. Service - Monday - Friday 7am to 6pm. Parts - Monday - Friday 7:30 am to 4:30 pm.