Find GMC dealers in Mobile, AL with New and used 2011, 2012 for sale. GMC Mobile New and used car prices lower than many other cities in Alabama, because of lower cost of living in the Mobile region. The GMC Mobile dealership, AL has all models Sierra 1500 are for sale for customers in Daphne, Pascagoula, Foley, Brewton, Pensacola, Lucedale, Bay Minette, Monroeville. You can request for new GMC quick quote on Mobile New GMC Sierra 1500.