I recently bought a new car that tells you how many mpg you are getting in real time and it was interesting to play around with different speeds to see what my mileage was. I always knew the faster you go the worse the mpg but seeing it as it happened was informative. My Subaru got 38 mpg at 55mph and dropped to around 31 mpg at 65 mph. When Carter made the speed limit 55 everyone had a fit until it was changed but in this age where so many are so convinced we are warming the planet with fossil fuel it makes me wonder how many of them would be willing to slow down in order to put less carbon into the air. It's put up or shut up time.