My car gets 30 mpg mostly highway, some city/hills. I'm sure I could up it a bit w/ a new air filter, fuel filter, tire inflation, etc. Keep in mind this was with a full car of stuff from college too. I would say that 35 mpg is not unlikely. You also use less gas w/ the cruise control on, since you speed is constant and not fluctuating like when you put you foot on/off the gas.
