Since starting my hypermilling endeaver in January 2007, I have saved 205 gallons ($647). This has been a record summer for me in terms of MPGs. I should be poised for a record winter. My goal is to average in the mid 50's, which is a 20% improvement over last winter. The main difference will be more EOCs and earlier working hours (so I don't have to drive home in the dark!).
Next summer, my goal is to average in the upper 60's MPG and perhaps pull off a 1000 mile tank!