First: This post does not belong in 2Addicts because it is not specific to a 2 Series.
Second: In both the forum that this post should be in and the General Automotive forum, there are gobs of discussions about poor driving etiquette, both as a topic and as commentary to a (sometimes loosely) related topic.
Here's one.
Here's another.
Third: Please don't use the forum as a bitch-session board. The above links demonstrate that you're not bringing up anything new.
Fourth: The behavior you allude to is not BMW-specific. It's far from it. Please stop perpetuating stereotypes that have no situational merit.
Finally: Good grammar helps prevent giggling by others. Learn some more.
Thank you for your time,
Herr Viffermike von Mannschaft
Your friendly but occasionally cantankerous neighborhood forum deputy