I drive around town, windows down, with a "you owe me $20" face. It's the only way to cruise properly in an M3.
In the Yay Area, you're better off looking like a jerk. Plus, it gets all the fly honeys...
"A good reputation is more valuable than money"
2013 F10 535i M-Sport - DGM II
Mods: 3D Design Front Lip & Rear Diffuser | Megan Exhaust & Coilover | 20" RSV MS8 | M5 Sway Bar | BMW Perf CF Spoiler & Black Grills | IND Cosmetic Pkg