I have a 2015 C-Max Hybrid PlugIn and I only drive only short distances and plugin whenever I stop. so I seldom ever use any Gas. My MPG is averaging over 300 MPG which I believe is miss-leading. I don't believe the formula the computer is using takes into consideration the cost of a full charge. I figure the cost of a full charge is about the same as the cost of a 1/3 gallon of gas. I am able to go about 24 miles in EV mode before it will switch to "Hybrid" mode. So I figure my true MPG should be in the 60 to 70 MPG range. Does this sound correct to you?