I have been driving my Steptronic 330i for about 3 weeks now and am pretty disappointed in the gas mileage. (It was one of the reasons I sold my M3, but I won't get into that...) EPA rating is 21/29, my car is pretty new, still less than 800 miles on it with very little highway driving as yet, but I am getting nowhere near 21. Closer to 14 or 15...
Is there a promise of better times coming after break in? What are you guys getting as far as MPG?