The BMW 3-Series is the most popular model line worldwide for this German auto maker. BMW’s 3-Series is devoted to combining strong engineering with note worthy performance and high end features. The EPA estimates fuel economy on the BMW 3-Series to range from 16-19 MPG city to 28-30 MPG highway. Watch the Pre-Owned Vehicle Review for the 2001 to 2005 BMW 3-Series to view JD Power Ratings for overall dependability, predicted reliability, overall performance and design, safety, and overall initial quality.