The location of several functions could be placed in a better location. The fuel mileage is much worse than I thought it would have been. I was having problems with the tire pressure, to find out there is some kind of sensor that can only be reset by the dealer, and unfortunately my dealer was unaware of the sensor until recently.
OnStar, XM radio and hand free calling
Make it a hybrid, move temp controls above radio, the current location requires moving your eyes way off the road to change something and move the row of display buttons below the radio.