Welcome to O'Meara Buick GMC in Thornton, CO! Our dealership is a great solution to any auto buyer, looking for a new or used ... vehicle. All you have to do is drop by our Thornton showroom and pick what suits your need the best, and our qualified and friendly staff will take care of the rest. We look after all your needs, right from sales, services, parts, accessories, tires, as well as financing options. Our GMC and Buick dealership is very conveniently located in Thornton near Westminster, CO. So, what are you waiting for? Northglenn Buick and GMC drivers can make the short drive to our dealership today! read more