My car has just under 400 miles on it. With mostly city driving in stop light traffic, excessive idle times, all A/C use, and very little highway....my car averaged 24.8 mpg (hand calculated). The display said it was getting ~26.5 mpg. Not bad considering the car was just built last month with all the new "updates".
Things should improve as the engine breaks in and I prevent excessive idle in parking lots to please the misses.
2012 Focus Titanium - 18" wheels with handling package
2009 GT500 Shelby (700 rwhp) - sold (tired of feeding the car's thirst for fuel and my hunger for more power)