I have been averaging around 50 MPG since breaking in my 2010 Insight EX, but a recent fill-up resulted in 52.7 MPG. Then I filled up this past Saturday and achieved 53.6 MPG, best ever! MID was reporting 57.5 MPG, so the 4 MPG discrepancy seems about the norm. I drive a mixture of city and highway, but rarely exceed 60 MPH as the highways I drive aren't freeways or tollways. Not a hypermiler, but I do pay attention to the way I drive..slow and steady starts, easing off the gas far in advance of red lights, etc. The MID is currently showing over 58 MPG, so maybe better things are to come! I'm happier than a weasel in pajamas.