Jim Trenary of Union proudly serves St. Louis Chevrolet and GMC customers. We have a large selection of new Buick, GMC and Chevrolet vehicles, as well as a great selection of used cars and trucks, with superior customer service. Located at 1001 North Highway 47, we're easily accessible from Interstate 44 at Exit 247. Our customers rely on our dealership for all their new, used, parts and service needs. We are your premier Chevrolet, Buick and GMC dealer in Washington, Eureka, Pacific, and Union, MO.