I got 65 MPG highway yesterday with about 35 % of it on 40 MPH roads.
The rest was at 50 to 60 mph.
Today we went to Somerville MA (17th most densely populated incorporated place in the country), where it's very slow, due to millions of cars and trucks, everyone cuts you off, and you are constantly jamming on the brakes.
(An MBTA bus tried to smash us, but I was too quick for the jerk).
In drivers Ed classes in Somerville, 85% of the class is about defensive driving..
(That's not a joke, I took their course when I got out of the Navy. Insurance $$ break).
The only thing I did eco on this 20 mile road trip, was press the ECO button.
With all the hills, I found it a little odd that 62% was in EV mode..
I also found it a bit odd to get up to 40 MPH and see the ICE was off!!
I'm not trying to learn how to Hypermile it, since it's my wife's car..
But I think she might end up getting 65 to 75 MPG, if she makes the effort.
She seems to like the idea of only buying gas once a month..