Dean Cooley GM in Dauphin, MB is a Chevrolet, Buick, and GMC dealership. We always have a great selection of cars, trucks, vans, and sport utilities in stock as well as the ability to get almost anything you want! Dean Cooley has been serving the Parkland Region since 1995. In that time, we have become Manitoba's #1 selling GMC and Chevrolet Truck store. We have been awarded General Motors' prestigious Triple Crown Award for customer satisfaction and we have shown our commitment to our community, our customers, and our staff. In 2004, we moved into our state of the art 30,000 square foot facility. A facility that allows us to serve our customers better, faster, and more conveniently than ever before. Experience the Dean Cooley GM difference.