Oh, so they are hypermiling to get this.
While, it isn’t that big of an achievement then.
Neat, but without hypermiling, it would have run out of gas about 300-400 miles ago probably.
IIRC, NASCAR driver Carl Edwards was one of the drivers, but they also had some well known hypermiling guru driving a sting. Probably maxed out at 50 mph too.
I don’t think you can add a 120% efficiency increase from hypermiling.I could be wrong though