; Union Pontiac GMC Buick is an automobile dealership that features a variety of new and pre-owned vehicles. It deals in a range of convertibles, coupes, vans, sedans and sport utility vehicles. It offers vehicles from various manufacturers, such as Buick, GMC and Pontiac. The dealership also sells and services several models of Cadillac, Chevrolet, Hyundai, Nissan and Ford. Its GMC models...