From my ZipCar newsletter...

"We dedicate this portion of the newsletter to honor our Prius Pluto. Given the recent astronomical downgrading from planet to "dwarf planet," we were in a bit of a pickle over what to do about our own dear Pluto. Some thought that he should be downgraded to "go-cart" status. Others have suggested that we bronze him in living memory of the "planet" that never was. However, our little hybrid Prius Pluto has been more of a friend to Earth and Mother Nature than any other planetary name-sake (ahem, Mercury) and for that, we'll just let him be. Please take a moment to salute our pal, Prius Pluto."