ideas for an '07 Mazda 3 hatch
 

With the new regs as of '08, Mazda is more honest about the 3's mpg.
Driving slower and with higher tire pressure are about the only things I've tried so far. I'll be digging into past EM posts by Mazda 3 owners. Neat forum!

(Also, damn nice to see EM isn't running vBulletin's latest version. It's been a disaster on bikefourms.net.)