Hm after reading this I wonder if Wayne conducted the same experiment with a first gen prius? I know the 2nd gen prius is capable but it sounds like the HCH I can blow the first one in terms of driving for mileage. Good points!

i got around 20 km a liter when i drove a civic 5 spd using advanced hypermiler techniques
and now I drive a salvage nwh20 prius that gets almost to 25 km/l with 195,000 km to date.