hypermiler
v.— «If i really had to comment on that, i’d say that if driven for the most milage (like he says…it gets what it gets, he doestn drive it like a hypermiler) it could get more.» —“Turobocharged Insight” by Steve Sloan in Gainesville, Georgia GreenHybrid June 17, 2004. (source: Double-Tongued Dictionary)