So, I have a 2011 with the Solar /Sunroof option and I have noticed after driving behind a NON-solar roof Prius that Toyota had to change the aero design and shape of the roof to accommodate the Sunroof and Solar panel. I particularly LIKE the sleeker flat look of the roof line opposed to the aero "humps" if you will of the non solar roof versions. I would assume there is a negligible differnce in drag of the different designs. In short.. I just think the Solar/Roof option not only adds the sunroof and Solar, but is a MUCH better sleeker look to the Prius.. thoughts?