Located in Hagerstown, Md., Sharrett Buick GMC is a family-owned dealership that offers a variety of new and certified pre-owned vehicles. Its inventory of new vehicles includes the Buick LaCrosse and Lucerne, GMC Canyon, Sierra and Envoy. Its collision center offers a variety of repair services. The dealership's web site provides online financial options, vehicle listings with photographs, monthly payment calculators and discount coupons.