Dont be mad at toyota, its not what toyota said it would get, its what the epa said it would get.

It will take more than 4 tanks to break in and get the best FE that you can. I am at 7500 miles on my civic hybrid and I am just now crossing into EPA advertised FE range.

...most likely a donkey, but if he had to drive a car, i bet it would be a hybrid.