Hi, I've had my Model S for 9 days. It's silver. I'm used to having my cars detailed every 2 weeks, but in just 9 days my Model S is coated with dark powder that I think is brake dust. It's most heavy just behind the wheels, but somehow it also got all over the rear lift gate/license plate area. This surprises me because I have been relying mostly on the regen and didn't think I was even using the brakes very much except to come to a complete stop. And I don't think I've driven more than 20 miles in any one of the 9 days. Is it normal to have so much brake dust all over the car after 9 days? Could it be just road dirt kicked up? My last car was a darker color and never looked like this -- it only got the black dust on the wheels themselves not everywhere else. Does anyone else get a lot of brake dust from not much driving or braking?