Lowered != good handling
If someone is posting their car in the "slammed thread", they obviously don't care about handling that much.
You're clearly exaggerating with 3" lower and 5" poke. I'm just saying that almost everyone one of these cars would be much better off with lowering the front 0.5-1" or raising the rear respectfully.
BMWs come with reverse rake from the factory. It's just not flattering to look at.