Advance Auto Parts, is headquartered in Roanoke, Virginia,[3] and is now the largest retailer of automotive replacement parts and accessories in the United States [4] after acquiring CAR QUEST in October 2013. AAP was founded in 1932 and had 2011 sales of approximately $6.2 billion. AAP operates over 3,800 stores in forty U.S. states and has over 55,000 employees.