Billion Auto New & Used Car Dealership

Welcome to the Billion Automotive Family! Since 1935, Billion Auto has built its name and reputation on customer satisfaction. With 16 new car franchises and 20 locations in Sioux Falls, Worthing, Watertown, Rapid City, Sioux City,  Iowa City & Des Moines, IA, Billion Auto has over 6,000 vehicles to choose from and is one of the nation's largest automotive websites! Remember, you can always visit us online at BillionAuto.com to see all the new & used vehicles we have in stock!