As the premier Warminster Buick, & Warminster GMC dealer, O’Neil Buick GMC would like to welcome you! We are proud to also serve as your Lansdale Buick, Lansdale GMC, your Willow Grove Buick and Willow Grove GMC dealer In Bucks County, PA. Whether you’re researching new Buicks, GMC’s, used cars, are ready to buy, or are looking for a reliable service and parts department, our Buick GMC dealership in Warminster has you covered!