It Takes More Than Just One Happy OFallon Customer to Earn the Trust of Drivers Throughout Belleville, Collinsville, Florissant and St Louis, MO. It Takes a Dynamic Team Just Like the One at Auffenberg KIAAt Auffenberg Kia, were dedicated to earning your business again and again. The first time you walk through our doors could be to browse our selection of used cars. Or, perhaps youll stop by to trade an older model for a brand new Kia vehicle.