Your Civic is shaped like an arrow compared to the brick shaped Bronco. Lot more wind resistanceGood info, but I question the study's overall outcome. My current daily driver is a Civic, which displays MPG, and where I live in Texas there are many 70 MPH tollways/highways. When I am traveling at 70-80 MPH I have an MPG of ~32, versus slower driving which is ~27-29.
That is just me though. I know there are hundreds of variables that can be taken into account.
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