Recent Arrival! AWD.GMC Dealership Serving Boulder, CO Drivers – Mike Maroone GMC GMC Sales, Service, and Parts in Boulder, CO If you have been longing to get into a new GMC close to Boulder, CO, then right now is an ideal opportunity to find your next auto at a low cost, here at Mike Maroone GMC. Enjoy Free Delivery anywhere in Colorado. Our GMC Truck line is headed by the Sierra 1500, 2500 and 3500, each new GMC model can be found here at our Boulder, CO dealership. Discover your new GMC in Boulder now for a test spin of your dream car. Odometer is 38101 miles below market average!Reviews: * If you like your luxury SUV big, menacing and powerful, the chrome-slathered 2013 Cadillac Escalade has no equal. The hybrid model is unique in this class. Source: KBB.com * Simultaneous cargo- and people-carrying ability; unique visual presence; long list of standard features; gutsy V8; composed ride. Source: Edmunds