Summit White 2018 GMC Sierra 3500HD RWD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, Dark Ash With Jet Black Interior Accents Vinyl. Jim Ellis Buick GMC Mall of Georgia, winner of the prestigious General Motors of Dealer of the Year, provides the utmost in sales selection, having over 650 new and pre-owned vehicles. The Jim Ellis organization has won customer service awards 9 years in a row and supports our communities’ families and their needs. We keep the well-being of our clients foremost in our thoughts by providing a safe play area for children and family friendly programming. Our new 55,000 square foot state-of-the-art facility features comforts of home to include specialty coffee and teas, fresh fruit, healthy snack options, and internet/computer access. Theater seating with a huge projector TV gives our clients the opportunity to work or relax while they are in our service department. Voted number 1 business in Buford for 2014, 2015, and 2016!!! At Jim Ellis you can expect the best!