The city fuel economy for the 2011 Audi A4 is between 21 miles per gallon and 23 miles per gallon. The four door All Wheel Drive Quattro Sedan 2.0T Premium will cost $32,850.The 2011 Audi A4 has chosen to incorporate a Multi Media Interface into its system.The "2011 Audi A4" is a viable alternative to the more-expensive BMW 3-series. Audi refreshed the A4 in 2009. Two model years later, the 2011