I saw that tesla is now showing a range of 322 miles on their website so I thought that I would fully charge to see what my range is. Tonight it stopped at 304 miles, bummer, lol. I was hoping the new upgrade would add mileage along with power. I drive at a max normally of 70, I am not one to gun it, I normally charge to 240 miles and the temperature outside is 68 °. When I originally bought the car I tested it out at 310. I do not know if anyone as tried to see if the new upgrade has given them more range. If so please let me know. Right now I figure a 2% degradation, hopefully it is not a 6% degradation. 322-304 or 18 miles.