finally, someone here gets it.
Yes, here is the convo between your wife and you about the X5M or X6M.
Wife: "What does this 'M' button do?"
You: "Don't worry, that just tightens the response, of the 400 HP engine"
Wife: "Ok...400, isn't that too much?"
You: "No, just right"
What she doesn't know is that pushing the "M" calls forth all of 555 HP, putting in uninterrupted Man Heaven.
yes it shall be faster than the m3!i'd still buy rather an M3
me, too, but if I had my way, I'd have every gen. M3, every gen. M5, and M6.