Marianne, I hate to say this, but the hybrid we are driving is not the most efficient one on the market. I chose this vehicle for many reasons, including style, performance and interior size and fe. My previous car was a saturn sl and I averaged about 36 MPG mixed and 42 MPG all highway, but i had to get out of the car to remove my coat, it was not particularly stylish and lets not talk performance at all. As the Nah gets older and newer technology comes out, we will be ahead of the game in regards to skills acquired during this time. It is possible that 10 years from now a hybrid GAS electric may be too expensive anyway, 40-50-60 MPG may be the 10-20 MPG muscle cars of yesterday. Don't go crazy, if you do, just go out and buy another hybrid, like the prius.