When I first heard that Toyota was aiming for a 100 mile per gallon hybrid, I thought that was pushing it.

Well, a group of “hypermilers” aren’t quite manufacturing lots of cars to go an average of 150 MPG – but they are aiming for this high fuel efficiency with a combination of driving a car known for its great mileage, the Insight, driving methods, and a smooth terrain.

That terrain is located just outside of my home – Tulsa, OK.  And it’s known for being pretty much flat and gentle to drive on.

At the end of the “Insight Marathon” this October, the Insight actually exceeded their expectations for day 1 with a relatively solid 156 + MPG.

Read all about the Insight Marathon at Clean MPG.