Summit White 2026 GMC Sierra 1500 4WD 8-Speed Automatic 2.7L I4 Turbocharged DOHC 16V LEV3-SULEV30 310hp Double Cab, 2.7L I4 Turbocharged DOHC 16V LEV3-SULEV30 310hp, 8-Speed Automatic, 4WD, Summit White, Jet Blk Clth Cloth.When it comes to purchasing a new Buick or GMC, LaFontaine Buick GMC of Dearborn is your premier destination. As the leading Buick and GMC dealer in Dearborn, we pride ourselves on offering an extensive selection of the latest models, including the luxurious Buick Enclave and the powerful GMC Sierra 1500. Our commitment to customer satisfaction is unmatched, with a dedicated team ready to provide you with a seamless car-buying experience. Enjoy the benefits of the LaFontaine Family Deal, which ensures you receive the best value and exceptional service every time you visit. Plus, our state-of-the-art service center is here to keep your vehicle running smoothly for years to come. Visit LaFontaine Buick GMC of Dearborn today and discover why we are the trusted choice for new Buick and GMC vehicles.