I am not sure my car could get below EPA anymore.
there would have to be lots of idling, stop and start traffic and city driving.
last week I had a relative drive my car for about 100 miles. that person did 75 MPH on the freeway with cruse and pulled 42.1 MPG. EPA 31 highway.
to pull epa on the freeway would likely require speeds around 95-100 MPH
unless I get to the salt flats I will never know.