Coulter on Camelback is the Cadillac Buick GMC dealer of choice for the valley. Founded in 1923, we are the oldest Cadillac dealership in the state of Arizona. Conveniently located in the central corridor, we are a quick drive anywhere in the valley. We offer a luxury experience in car buying, including food service and wi-fi in the waiting room, no-pressure, knowledgeable sales staff, and full-service parts and service shop with valet.