It has a lot to do with the kind of driving one does I'm sure. I know people who get much better mileage in their ... oh here's that word again. Priuses? Prii? Prioi? (I prefer the latter even though it ought to go with a singular Pri
os, not Pri
us

)
Up north it's a rural commute. Accelerate to highway speed, go two miles, come to a redlight and stop; repeat x 3. Definite gas mileage killer. Down south, use the car once or twice a week so the battery doesn't stay topped up.
Unfortunately I have a suspicion that the Prius does best in the kind of daily commute where SOMEONE SHOULDN'T BE DRIVING A DANGED CAR AT ALL because it's stop and go urban traffic and you should just take the bus, or the train. Or ride your bike.
... Did I say don't get me started?

