or call (888) 759-4956 br Fiat of Olathe, located near St Louis, MO, is the premier provider of new and pre-owned Fiat automobiles. Our new and pre-owned inventories hold a wide assortment of vehicles to suit every taste and need. At Fiat of Olathe, we strive to make buying or leasing a new or pre-owned vehicle a pleasant and rewarding experience.