I've seen 3; two in dealers, and 1 on the road. The other two were Alpina blue, while the one I saw on the streets was black. They all looked menacing. I could actually tell it was an Alpina from the distance because the front chin spoiler on the b7 makes it look like a person that's gonna eat you (the headlights look like mad eyes).
Past:'08 E92 335i|ZPP|ZSP|6AT|four (4) HPFPs
Present:'15 Mustang GT|401A|PP|6MT|Recaros
Sig pic unrelated. I like to go sideways and stuff.