Thanks but I understand the coasting, which I am but the engine stays on until under 65 mph. For the people that have had the software update and have driven the car a few tasks, have you noticed any increase in MPGs? How much? keithsm2 - are you only getting 35.7 MPGs in your 2013 hybrid. I just got the 2013 about 2 months ago, have about 3000 miles on it now and I'm getting about 47 to 48, but that's when I really watch how I drive, slow starts from stops etc. Should I even worry about the software update?