WELCOME TO D'ARCY BUICK-GMC Our dealership carries a full line of new and pre-owned vehicles. Naperville and Chicago, IL customers can drop by our Joliet Buick and GMC dealership and test-drive a new or used Enclave crossover, the award-winning Terrain or professional-grade Sierra. Our selection can't be beaten, and with so many choices, you're bound to find what you're looking for. At our dealership, we want to give you the deal you deserve, so we've designed our website to help our out-of-town Orland Park, Naperville, and Chicago, IL GMC and Buick shoppers do their research before they come by in person. You can request a quote, research our special financing options, and check out the ongoing specials we offer.