I have a '95 Camry V6 wagon, and my style of highway driving gives 27 MPG on the highway, best case. I rented an '06 Camry 4-cylinder for several days to see what it would do. With my style of highway driving, I got 32MPG. For an '07 XLE V6 to get 35 MPG doing 80MPH, ther must be some new technologies to improve the mileage. I haven't been keeping up with Toyota technology on their gas-only engines. Can anybody list any design developments over the past few years that would make a dramatic improvement in mileage?