 News as it unfolds and your chance to talk about it. Kello. News Talk 1320, 107.9 and kello.com. At Billion Buick GMC in Sioux Falls, we have one of the largest new GMC inventories in the Midwest. Whether you need a hard-working 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. We'll help you find the right vehicle for you.