 Fox News every hour on the hour and entertaining talk shows all day. Kello, News Talk 1320, 107.9 and kello.com. At Dillion Buick GMC in Sioux Falls, we have one of the largest new GMC inventories in the Midwest. Whether you need a hardworking new GMC Sierra half-ton or heavy duty for work or an SUV with room for the whole family, we have you covered. Stop by today.