Averaging 21mpg on my M340i... My commute to work is very short, not even sure the engine gets warmed up to operating temperature before I arrive, so I can't really get good milage. On the weekends when I take it out for trips, I can average ~32mpg with 70mph driver assist pro engaged. In stop-and-go traffice, mpg drops down to low-20mpg's on the freeway.
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