Saw my first F31 yesterday at about 10pm on the M1 near leicester.
It was a dark blue 330d luxury with xenons and 19's.
As I was cruising by the side of it I was sure that it sat lower than my m sport does. Admittedly I've only looked at the ride height of my car when it's stationary, not sure if that would make a difference.
Anyway, it looked very nice!
Current: 2013 F30 320D M Sport AW, 403M 19", Bi-Xenon, Black Leather
2005 E91 320D M sport, BSM, Twist 230 19's, Lemon Leather. Death by Swirl Flap
2002 E46 320i M Sport, Convertible, Titanuim Silver, 19's, Xenon, Black Nappa Leather
1998 Lotus Elise 111S, Black