Mike Smith Buick GMC is the family-owned and operated GM dealership that's kept generations of drivers coming back since 1973. Our Buick and GMC dealer in Lockport, NY, has new Buick SUVs and GMC trucks for sale, as well as dependable used cars to fit every lifestyle and budget. Local drivers love that our state-of-the-art service center features two World-Class Technicians, a courtesy shuttle, loaner fleet, quick lube, plus pickup and drop off for GM plant employees. Visit our award-winning dealership in Niagara County for $0 down leasing, level 3 EV chargers and the only GM body shop in the county. Mike Smith Buick GMC: Where Doing Business Is A Real Pleasure.