In my opinion, I don't see any benefit of having a hybrid unless you drive a lot in town. The purpose of having the hybrid is so that the gas engine has a chance to cut off or stop running when you car stops. In a freeway, you constantly moving and I don't believe the battery motor would kick it 100% of the time. The car still needs gas engine to keep the car moves at 65mph. So, in you case, you may not see any MPG increase or expected fuel saving.
