Broke this car in on a trip through the mountains. At 200 miles, it averaged 25.1 MPG, 72 MPH. Town driving at average 27 to 29 MPG. Latest trip (Interstate and mountains) averaged 26.1 MPG., again at 72 MPH. Acceleration is both excellent and fun. This is our third Lexus (2nd RX) and it's by far the best. If your gas mileage isn't AT LEAST as good as the EPA estimate, work on modifying your driving style. Build quality for this Japanese-built example is flawless, and dealer (Classic Lexus) is extremely 'hybrid knowledgeable'.