Wegner Auto of Pierre, South Dakota is a fourth generation family owned business established in 1907. With over 100 years in the industry, we are the oldest auto dealer in South Dakota and the oldest Buick dealer in the United States under the same family name. We have maintained a thriving business due to our commitment to customer service and satisfaction throughout the years. We have consistently maintained a large selection of inventory of new and pre-owned cars, trucks, vans, SUVs, a busy service/parts department, and body shop for over 100 years!