i think you missed the point. avlnch said it best, you can adjust how it drives.Wouldn't that be like saying that the car has 400HP but when you press the Power button you get 500HP? :confused3
It's interesting to see that all the negative comments for a switchable HP setting come from those in warmer climes (SoCal, Texas etc...)The best thing about the M car is how you can adjust how it drives.
For somebody who has to drive through town power button is the best button in that car. You can drive comfortably..
For when it's rainy and snowy/icy the 400hp is also a benefit to keep traction.
The suspension button is a must... no explanation needed.
And keep in mind this is a car built to be your daily driver.. ding ding ding