I consider myself a hypermiler. I have achieved 76.3 LMPG over a 2+ year/70,000 mile span. Considering that I live in a particularly cold and hilly area of New England, that is pretty good. I am attentive to my driving habits, and pay close attention to the instrumentation feedback to finetune my driving techniques. In other words, I let the car teach me how to drive it. I think that hypermiler categorization is less about absolute numbers than it is a general driving philosophy.