I'll start, The 400h is usually driven by 'she-who-must-be-obeyed'. But since she recently had back surgery (3rd time's the charge, hope-hope), I've been driving out a tank. This is down to about 1/3 tank of gas left: I think that's about 20% above the EPA ... for the AWD version. Should of gotten the tires aligned before I started, & used the block heater. Oh well, I like a challenge .