lol too bad i sold my GT4, but back then there was a demo version where the game ASKS you to drive for FE. Obviously the higher the better! The game was used to sponsor the 2nd gen prius which at the time just came out.

on the other hand if they finally release GT for the PSP maybe we can duke it out on WIFI! although its a shame they didn't include the IMA system as well...

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.