1.) A cruise control that could be dual mode: a conventional speed hold and another mode that allowed a MPG target from the FCD. Or a dual mode, set 75 mpg on the FCD, as the primary and allow a max speed of 55 miles per hour for example.

2.) A DVD based navigation system

3.) Move the seat back adjuster levers to the outside of the seat.

4.) Move the instruments to the area below the bottom edge of the windshield (like the Prius II).

5.) Automatic temperature sensitive warm-air intake and radiator block.

Regards,