2026 Onyx Black GMC Sierra 3500HD Denali Ultimate 4WD Duramax 6.6L V8 Turbodiesel 10-Speed Automatic10-Speed Automatic, 4WD, Alpine Umber Leather.Dealer's Purchase Price includes a $699.00 dealer administrative fee and dealer-installed accessories but excludes governmental fees such as tax, tag/title, and electronic titling fees. Pricing for Commercial inventory may not include Customized Commercial Bodies or Upfits. Dealer's Purchase Price expires at the end of each business day. Ready to take the next step Visit us at www.ParksBuickGMC.com or call today to get your questions answered, request a custom quote, or book your test drive. Parks Buick GMC in Greenville proudly serves drivers across South Carolina with a wide selection of new Buick & GMC models, commercial trucks, and quality pre-owned vehicles. Stop by 2640 Laurens Rd, Greenville, SC 29607 - were here to help you find your next vehicle. Price includes $698 of dealer added accessories.