As most of you know, the flat black rocker panels have changed to the body color on the new Model S. While this change is a matter of preference, the good news is that if you don't like the new look on your new Model S, a rattle can of flat back paint and some masking tape & newspaper can take care of it. (I'm only half joking. I actually did this to my brand new Fiat 124 Spider when I was in college...and that car cost me a lot higher percentage off my net worth than most Model S buyers). On the other hand, changing the black rocker panel on a current Model S to the body color is not a typical DIY project. So, if you want the new look on your current S, you'll probably need to find a good paint shop.